Uvarovite (original) (raw)

02883360014946247241934.jpg

Colour:

Green, emerald-green, green-black

Specific Gravity:

3.77 - 3.81

Name:

Named after Count Sergey Semeonovich Uvarov (Сергей Семёнович Уваров) (25 August/5 September 1786, Moscow, Russian Empire - 4 September/16 September 1855, Moscow, Russian Empire), Russian statesman and scholar, President of the Academy of St Petersburg (1818-1855).

Garnet Group. Grossular-Uvarovite Series, Andradite-Uvarovite Series

Uvarovite is the name given to the green calcium chromium garnet end member.
The name has frequently been misused in the past to refer to other green and/or chromium-bearing garnets, many so-called 'Uvarovites' are actually chromian Grossular, chromian Pyrope, green Andradite (the so-called Iranian 'uvarovite') or even the rare Knorringite (magnesium chromium garnet).

Note: some uvarovites show Al-Cr cation ordering, resulting in orthorhombic, monoclinic or triclinic symmetries (while still being strongly pseudocubic), see articles by Andrut & Wildner (2001, 2002).

Long-form identifier:

mindat:1:1:4125:2

23a75285-23c5-4d99-b664-0f26759b0f7a

Approved, 'Grandfathered' (first described prior to 1959)

9.AD.25

9 : SILICATES (Germanates)
A : Nesosilicates
D : Nesosilicates without additional anions; cations in [6] and/or greater coordination

51.4.3b.3

51 : NESOSILICATES Insular SiO4 Groups Only
4 : Insular SiO4 Groups Only with cations in [6] and >[6] coordination

14.15.5

14 : Silicates not Containing Aluminum
15 : Silicates of Cr

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.

Symbol Source Reference
Uv IMA–CNMNC Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43
Uvt Siivolam & Schmid (2007) Siivolam, J. and Schmid, R. (2007) Recommendations by the IUGS Subcommission on the Systematics of Metamorphic Rocks: List of mineral abbreviations. Web-version 01.02.07. IUGS Commission on the Systematics in Petrology. download
Uv Whitney & Evans (2010) Whitney, D.L. and Evans, B.W. (2010) Abbreviations for names of rock-forming minerals. American Mineralogist, 95, 185–187 doi:10.2138/am.2010.3371
Uv The Canadian Mineralogist (2019) The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download

Transparency:

Transparent, Translucent

Colour:

Green, emerald-green, green-black

Fracture:

Irregular/Uneven, Conchoidal

Density:

3.77 - 3.81 g/cm3 (Measured) 3.848 g/cm3 (Calculated)

Birefringence:

Isotropic minerals have no birefringence

Comments:

May be weakly anisotropic due to strain or symmetry reduction (triclinic and orthorhombic varieties are known).

Mindat Formula:

Ca3Cr2(SiO4)3

Common Impurities:

Al,Fe,Mg

Class (H-M):

m_3_m _(_4/_m_32/m ) - Hexoctahedral

Cell Parameters:

a = 11.99 Å

Unit Cell V:

1,723.68 ų (Calculated from Unit Cell)

Morphology:

Dodecahedra, trapezohedra.

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Powder Diffraction Data:

d-spacing Intensity
2.684 Å (100)
2.999 Å (70)
1.603 Å (60)
2.449 Å (55)
2.352 Å (25)
1.664 Å (25)
2.557 Å (20)

Comments:

Synthetic. Data are from Swanson et al. (1960).

Geological Setting:

Hydrothermal alteration of chromite-bearing serpentinite, metamorphosed limestones, and skarns.

Place of Conservation of Type Material:

No designated type material.

Other Members of this group:

Almandine Fe2+3Al2(SiO4)3 Iso. m_3_m _(_4/_m_32/m ) : I a_3_d
Andradite Ca3Fe3+2(SiO4)3 Iso. m_3_m _(_4/_m_32/m ) : I a_3_d
Blythite Mn2+3Mn3+2[SiO4]3
Calderite Mn2+3Fe3+2(SiO4)3 Iso. m_3_m _(_4/_m_32/m ) : I a_3_d
Eringaite Ca3Sc2(SiO4)3 Iso. m_3_m _(_4/_m_32/m ) : I a_3_d
Goldmanite Ca3V3+2(SiO4)3 Iso. m_3_m _(_4/_m_32/m ) : I a_3_d
Grossular Ca3Al2(SiO4)3 Iso. m_3_m _(_4/_m_32/m ) : I a_3_d
Khoharite Mg3Fe3+2(SiO4)3
Knorringite Mg3Cr2(SiO4)3 Iso. m_3_m _(_4/_m_32/m ) : I a_3_d
Majorite Mg3(MgSi)(SiO4)3 Iso. m_3_m _(_4/_m_32/m ) : I a_3_d
Menzerite-(Y) (Y2Ca)Mg2(SiO4)3 Iso. m_3_m _(_4/_m_32/m ) : I a_3_d
Momoiite Mn2+3V3+2(SiO4)3 Iso. m_3_m _(_4/_m_32/m ) : I a_3_d
Morimotoite Ca3(TiFe2+)(SiO4)3 Iso. m_3_m _(_4/_m_32/m ) : I a_3_d
Pyrope Mg3Al2(SiO4)3 Iso. m_3_m _(_4/_m_32/m ) : I a_3_d
Skiagite Fe2+3Fe3+2[SiO4]3
Spessartine Mn2+3Al2(SiO4)3 Iso. m_3_m _(_4/_m_32/m ) : I a_3_d

Associated Minerals Based on Photo Data:

Health Risks:

No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Industrial Uses:

Gemstone.

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.

Afghanistan
Baghlan Andarab District Andarab valley Unnamed mountain Grüll et al. (2013)
Taghonak Koh-e-Tizabi Ikram Mineralogy +1 other reference
Albania
Dibër County Bater-Martanesh mining district Bulqiza Complex (Bulqiza Massif) Çina (2010)
Australia
New South Wales Bland Co. Fontenoy Cr Workings Graham et al. (2001)
Buccleuch Co. Coolac district Kangaroo East Chromite Deposit Graham et al. (2001)
Darling Co. Barraba Dieter Mylius collection
Murchison Co. Upper Bingara Dieter Mylius collection
Tasmania West Coast municipality Trial Harbour district Bottrill et al. (2008)
Zeehan mining district Avebury Nickel Deposit (Avebury mine) R. Bottrill
Western Australia Upper Gascoyne Shire Yinnietharra Kempton Brothers Beryl Mine Hesperian Press +3 other references
Austria
Styria Murtal District Sankt Marein-Feistritz Gulsen Exel (1993)
Tyrol Lienz District Prägraten am Großvenediger Umbal valley Islitz Alp Umbal falls (Granatwandl) Exel (1993)
Schwaz District Zillertal Ochsner-Rotkopf massif Koark (1949) +1 other reference
Canada
Manitoba Sherridon District Found Lake Unnamed railroad cut Richard Gunter Collection.
Ontario Thunder Bay District Bomby Township White River property (White River gold occurrence) Pan et al. (1989)
Québec Abitibi-Témiscamingue La Vallée-de-l'Or RCM Réservoir-Dozois Cabonga Reservoir Olivier Langelier Collection
Chaudière-Appalaches Les Appalaches RCM Saint-Joseph-de-Coleraine Normandie mine Can Mineral June 1
Estrie Les Sources RCM Val-des-Sources Jeffrey Mine Horváth et al. (2013)
Yukon Watson Lake mining district Itsi Mountain Wilson Lake Gun claim King (n.d.)
China
Hubei Huangshi Daye Co. Tonglushan Mine Zhang et al. (2023)
Inner Mongolia Xilingol League (Xilinguole Prefecture) West Ujimqin Banner (Xiwuzhumuqin Co.) Hegenshan Ophiolite Zhu et al. (2015)
Shaanxi Hanzhong Hongxing Zhou and Yuming Zhang (1995)
Tibet Nyingtri Prefecture (Linzhi Prefecture) Bomi Co. Yigong Tieshan Quarry Xuemei He et al. (2000) +1 other reference
Shannan Prefecture (Lhokha Prefecture; Lhoka Prefecture) Qusum Co. (Qusong Co.) Luobusha ophiolite ("Luobusa ophiolite") Wenji Bai et al. (2001)
Xinjiang Changji Autonomous Prefecture (Sanji Autonomous Prefecture) Manasi Co. (Manas Co.) Qiekuotai deposit Wang et al. (2021)
Yili Hasake Autonomous Prefecture (Ili Kazakh Autonomous Prefecture) Tacheng Prefecture (Tarbaghatay Prefecture) Tuoli Co. (Toli Co.) Sartohay (Sartokay; Sartuohai; Saertuohai) Sartohay Mine Zhou et al. (2001)
Cuba
Holguín Province Mayarí-Baracoa Belt Canadian Mineralogist
Moa-Baracoa District ...
Ethiopia
Benishangul-Gumuz Region Asosa Zone Tumet river Pavel.M. Kartashov (n.d.)
Finland
Lapland Keminmaa Kemi Mine Hytönen (1999) +1 other reference
North Karelia Outokumpu Keretti Mine (Outokumpu Mine) Betts (n.d.)
Mokkivaara Mine Joni Huttunen photo & collection
Vuonos Mine Joel Dyer photo & specimen
Outokumpu mining district Rocks & Min.: 22: 506-509. +1 other reference
North Savo Kaavi Luikonlahti Mine von Knorring (1951) +1 other reference
Leppävirta Kotalahti Papunen
France
Auvergne-Rhône-Alpes Haute-Loire Brioude Laval-sur-Doulon Pervenchères Serpentinite outcrop
New Caledonia Southern Province Yaté Anna-Madeleine Mine A.ABREAL (2015)
Occitanie Aveyron Rodez Sévérac-d'Aveyron Lapanouse-de-Sévérac slag locality Eytier J.R. & Ch. et al. (2004)
India
Karnataka Mysore District King (n.d.)
Tumkur District Bandihalli Taguchi et al. (2012)
Odisha Jajapur (Jajpur) District Saruabil-Maruabil chromite belt Kalrangi Mineralogical Magazine 1968 36 : ...
Iran
Kerman Province Arzuiyeh County Soghan misidentification of demantoid
Italy
Aosta Valley Saint-Marcel Praborna Mine Castello (1982)
Saint-Vincent C.M. Gramaccioli (1975)
Liguria Genoa Sestri Levante Libiola Mine Palenzona et al. (2007)
La Spezia Province Framura Prae Quarry Passarino (2020)
Lombardy Sondrio Province Lanzada Franscia Dossi di Franscia Sigismund (1948) +4 other references
Scerscen Valley Tabacchi C. (1972) +2 other references
Malenco Valley - (1972)
Piedmont Metropolitan City of Turin Ala di Stura Radis Alp Mine Rossetti (2000)
Villar Focchiardo Monte Pian Real Franchi (1897) +4 other references
Verbano-Cusio-Ossola Province Druogno Orcesco Alpe Rosso ? Piccoli et al. (2007)
Sardinia South Sardinia Province Domusnovas Perda Niedda Mine Stara et al. (1996)
Japan
Ehime Prefecture Higashi-Akaishi Ultrahigh-Pressure Peridotite Complex Miura et al. (2018)
Shikokuchuo City Doi Akaishi mine Masutomi Museum specimen (Kyoto) +1 other reference
Fukushima Prefecture Date District Kawamata Haneyama mine (Hayama mine) SUGAKI et al. (1952)
Hiroshima Prefecture Hirose mine - (n.d.)
Hokkaidō Prefecture Hidaka Subprefecture Saru District Biratori Fujiwara (1994)
Nukabira mine (Nukahira mine) Kobayashi (1986)
Chisaka deposit - (n.d.)
Tanukiiwa Nittoh mine (Nitto mine; Shin-Nitto mine) Bamba (1978)
Sorachi Subprefecture Yubari District Yubari placers - (n.d.)
Kochi Prefecture Kochi City Engyouji (Engyoji) Engyoji Cr deposit Kyoto University collection
Jori - (n.d.)
Kumamoto Prefecture Yatsushiro City Nekodani mine - (n.d.)
Nagano Prefecture Dainichi mine - (n.d.)
Okayama Prefecture Niimi City Mt Ohsa (Ohsayama; Osayama) Sakamoto & Takasu (1996) +1 other reference
Shingo-takase Takase mine Teruko KOBAYASHI (1986)
Saitama Prefecture Iruma District Ogose mine (Neoi mine) - (n.d.)
Tottori Prefecture Hino District Nichinan Wakamatsu mine Petrov (n.d.)
Jordan
Amman Governorate Transjordan Plateau Daba-Siwaqa complex Daba Pitty et al. (2010)
Kazakhstan
Aktobe Region Kargaly District Kempirsai Cr deposit doi.org (n.d.) +1 other reference
Main ore field Melcher et al. (1999)
Dzharlybutak Ore Group Almaz-Zhemchuzhina deposit Saveliev et al. (2023)
Geofizicheskoe-VII deposit Saveliev et al. (2023)
Karaganda Region Shet District Kairakty Palache et al. (1944)
Middle East
Hatrurim Formation Vapnik et al. (2014)
Morocco
Drâa-Tafilalet Region Bou Azzer mining district Favreau et al. (2007)
Zagora Province Agdz Cercle Tansifte Caïdat Aït Ahmane Favreau et al. (2006)
Inguijem Favreau et al. (2006)
Myanmar
Kachin State Mohnyin District Hpakant Township (Hpakan; Phakant; Phakan) Hpakant-Tawmaw Jade Tract Shi et al. (2012)
New Zealand
Tasman Region Collingwood Plumbago Creek Challis et al. (1995)
West Coast Region Westland District Red Mountain (Big Red Hill) David Smale (1991)
North Macedonia
Lipkovo Municipality Lojane Hiessleitner (1934) +1 other reference
Norway
Akershus Lunner Grua Grua mining district Østhagan Nature Reserve Kalkovnen Prestvik (1974)
Kalkovnen 2 Geological museum collection Oslo
Svea roadcut Natural History Museum (Geological Museum) +1 other reference
Nordland Meløy Holandsfjorden Rendalsvik Graphite/Uranium Deposit Gust et al. (1979)
Telemark Skien Flekkeren Jamtveit et al. (1997)
Trøndelag Oppdal Vinstradalen Witsø (1995)
Risberget Svartholhaugan Witsø (2005)
Vinstra River skarn locality Witsø (2005)
Røros Feragen chromium mines Rødtjern Mine Andersen-Aars (1905) +2 other references
Oman
Al Batinah North Governorate Wadi Fizh Arai +4 other references
Philippines
Luzon Central Luzon Region Zambales Province Santa Cruz Acoje Mine South-East Asian Oil
Russia
Bashkortostan Uchalinsky District Nurali complex (Nurali massif) Zaccarini et al. (2004)
Chelyabinsk Oblast Kartalinsky District Verblyuzhegorskoye Cr deposit webmineral.ru (n.d.)
Lake Baikal area Slyudyanka Pereval marble quarry Pekov (1998) +1 other reference
Pokhabikha River Valley Kaber's pit Pekov (1998)
Perm Krai Gornozavodskii District Biserskoye Cr deposit (Biserskii Zavod; Bissersky) Pekov (1998) +1 other reference
Malopester'skoe Cr deposit Pavel.M. Kartashov (n.d.)
Sarany Saranovskii Mine (TL) Moore (1994) +3 other references
Sverdlovsk Oblast Asbest Bazhenovsk deposit Kislov et al. (2021)
Novouralsk Verkh-Neivinsky massif East Shishim river placer deposit Мурзин et al. (2020)
Tuva Tes-Khemsky District Agardag ultramafic massif Palyanova et al. (2018)
Slovakia
Bratislava Region Pezinok District Pezinok Rybníček Uher et al. (2008)
Košice Region Rožňava District Dobšiná Dobšiná mining district Pauliš P.
South Africa
Limpopo Sekhukhune District Municipality Fetakgomo Tubatse Local Municipality Booysendal North Mine McCall (2016)
Derde Gelid Farm Cairncross et al. (1995)
Hendriksplaats Farm Cairncross et al. (1995)
Klipfontein Farm Cairncross et al. (1995)
Steelpoort Doornbosch chrome mine Cairncross et al. (1995)
Winterveld chrome mine Cairncross et al. (1995)
Waterberg District Municipality Thabazimbi Local Municipality Zondereinde Mine McCall (2016)
Mpumalanga Ehlanzeni District Municipality Thaba Chweu Local Municipality Lydenburg Kafferskraal Cairncross et al. (1995)
Vygenhoek Farm Cairncross et al. (1995)
Gert Sibande District Municipality Mkhondo Local Municipality eMkhondo Witkop Farm Cairncross et al. (1995)
North West Bojanala Platinum District Municipality Madibeng Local Municipality Brits Buffelsfontein chrome mine Cairncross et al. (1995) +1 other reference
Rustenburg Local Municipality Rustenburg Kafferskraal Farm Cairncross et al. (1995)
Turffontein Farm Cairncross et al. (1995)
Uitvalgrond Farm Cairncross et al. (1995)
Sudan
Blue Nile Ingessana Hills Ministry of Energy and Mining The Geological Research Authority of The Sudan (GRAS)
Sweden
Jämtland County Åre Handöl
Switzerland
Valais Visp Zermatt Gorner glacier area Riffelhorn (incl. Gagenhaupt; Gakihaupt) Stalder et al. (1998)
Taiwan
Hualien County Shoufeng Township Fengtien nephrite belt Wan et al. (1984)
Turkey
Elazığ Province Alacakaya District Alacakaya Güleman Mines Erik Vercammen collection
Erzurum Province Aşkale District Kop Daglari Kop Krom mine Dietrich (1978) +1 other reference
USA
Alaska Prince of Wales-Hyder Census Area Halibut Bay Alaska Div. Geological & Geophysical ...
Southeast Fairbanks Census Area Delta River Mining District Green Wonder Prospect - (2008)
Arizona Mohave County Cerbat Mountains Wallapai Mining District Chloride Mining District Chloride Tennessee Mine staff house area ? Thomas (1953) +1 other reference
California Alameda County Cedar Mountain Mining District Cedar Mountain Cedar Mountain Ridge Chromite deposits Committee et al. (1989)
Mendenhall No. 1 Mine (Cedar Mountain Mine; Mendenhall Chrome Mines; Mendenhall Mine; Newman Mine) - (2005)
Alpine County Calaveras Mine Murdoch (1966)
Amador County Jackson-Plymouth Mining District Jackson O'Donoghue (2006)
Pardee Mining District Chrome Mountain Fields Mine Van Nostrand Reinholt Press: 494. +2 other references
Calaveras County French Creek Mining District Mountain Top Bowie Estate Mine (J. W. Bowie claims) Van Nostrand Reinholt Press: 494. +2 other references
Liberty Mine (McFall Mine) Cater et al. (1948b) +1 other reference
Unnamed Cr occurrence [3] Cater et al. (1948b) +1 other reference
Pardee Mining District Camp Pardee Ward and Lyons Mine (White Hawk mining claim; Red Hawk Mine) Van Nostrand Reinholt Press: 494. +1 other reference
Del Norte County Klamath Mountains Diamond Creek Mining District Rockland High Plateau Mountain Bonanza claim - (2005)
Brown Mine (High Plateau Browns Mine) Murdoch (1966)
Skyline Mine (Skyline deposit) Van Nostrand Reinholt Press: 495 +2 other references
French Hill French Hill Chrome Mine (French Hill deposit; Tyson Mine; J. & W. Mine) Van Nostrand Reinholt Press: 495 +2 other references
Gasquet Angela Chromite Mine (Angela deposit) Van Nostrand Reinholt Press: 495 +2 other references
High Plateau Mine Van Nostrand Reinholt Press: 495 +3 other references
Gordon Mountain Camp Eight Mine (Camp 8 claim; Camp 8 group; St. Patrick claim) Allen (1941) +1 other reference
Little Rattlesnake Mountain Big Five Mine (Inman No. 5 Mine) Van Nostrand Reinholt Press: 495 +2 other references
Deleray and Rodgers claim Van Nostrand Reinholt Press: 495 +2 other references
Old Doe Mine Van Nostrand Reinholt Press: 495 +2 other references
Rocky Saddle Red Mountain area Big Red Mountain Chrome Mines (Claim No. 1; Red Mountain claim) Van Nostrand Reinholt Press: 495 +2 other references
Scott Bar area Sunrise Nos. 1 and 2 Mine (Stinson Mine) Van Nostrand Reinholt Press: 495 +2 other references
El Dorado County East Segment Mother Lode Georgetown District Georgetown Black Oak Mine [2] (Black Oak deposit; Cassiorina Mine; Cassiorini Mine) Van Nostrand Reinholt Press: 495 +2 other references
Latrobe Mining District Latrobe Chaix Mine (Chaix prospect) Van Nostrand Reinholt Press: 495 +2 other references
Smith Mine Van Nostrand Reinholt Press: 495 +2 other references
Salmon Falls Mining District (Flagstaff Hill area) Flagstaff Hill Farmer Swanton Mine Melhase (1935c) +1 other reference
Pilliken Mine (Pillikin Mine; Pillikan Mine; Pilliken Chrome Mine) Van Nostrand Reinholt Press: 495 +3 other references
Pillikin Mine area 5 (Placer Chrome Company workings; Placer Chrome Company Mine; Placer Chrome Mine) Shannon (1920) +1 other reference
Volcanoville Mining District Volcanoville Knoff Mine (Austin Mine; Ladue property; Federwitz; Knoff Austin; Bald Mountains) Van Nostrand Reinholt Press: 495 +2 other references
Fresno County Archer Camp James-Corbett Mine (Corbett-Byles Mine) - (2005)
Big Creek-Rush Creek Mining District Big Creek Esquire No. 7 claim
Condon Peak Jeanne Mine - (2005)
Wright Mountain Butler Estate Chrome deposit Van Nostrand Reinholt Press: 495 +2 other references
Glenn County Coastal Range Red Mountain Black Diamond group Black Diamond Mine - (2005)
Lake County Sulphur Creek Mining District (Sulfur Creek Mining District; Wilbur Springs Mining District) Clear Lake Oaks Unnamed Cr occurrence [4] Van Nostrand Reinholt Press: 496. +2 other references
Mendocino County Coastal Range Willits North of Willits Unspecified Cr occurrence [3] Melhase (1935c) +1 other reference
Mono County Mount Baldwin Unspecified Cr occurrence (1) Murdoch (1966)
Monterey County Mee Ranch Cow Creek Mee Ranch deposit Van Nostrand Reinholt Press: 497. +2 other references
Santa Lucia Mts (Santa Lucia Range) Los Burros Mining District Plaskett Los Burros Creek tributary Daisy Mine (South Slope Mine; Little Daisy Mine; Eldebren Chrome Mine) Bradley (1938) +2 other references
Nevada County Washington Mining District (Omega Mining District) Washington Red Ledge Mine Van Nostrand Reinholt Press: 497. +5 other references
Placer County Dutch Flat Mining District (Towle Mining District) Baxter Bear River Chrome Mine (Sullivan Chrome Mine; Sullivan-Hemphill-Nobel Mine [1917-1922]; Becky Mine [?]; Black Nugget Mine [WWII]; Central Pacific lease) - (2005)
Casa Loma Beat claim Van Nostrand Reinholt Press: 497. +3 other references
Forest Hill Divide area Hughes Mill Sunset Mine (Sun Set Chrome Mine; Sugar Pine Chrome Mine) - (2005)
Forest Hill Mining District Todd Valley Gas Canyon claim Van Nostrand Reinholt Press: 497. +2 other references
Iowa Hill Mining District Cottage Home Hill Iowa Hill Chrome Mine (Williamson and Beck property [1918]) - (2005)
Michigan Bluff Mining District (Michigan Bluff Mining deposit) Sage Hill Bunker Mine (Bunker Mines; Blue Bird Mine [1880's]; Bay Tree prospect; Sunnyside occurrence) Van Nostrand Reinholt Press: 497. +2 other references
Ophir Mining District (Auburn Mining District; Duncan Hill Mining District) Newcastle Melhase (1935c) +1 other reference
Snakehead Point Unnamed Cr occurrence [8] ndgren (1888) +2 other references
Sugarloaf Oak Patch claim Van Nostrand Reinholt Press: 497. +2 other references
Riverside County Jurupa Valley Crestmore Crestmore quarries Van Nostrand Reinholt Press: 497. +2 other references
San Benito County Alta Peak McCray deposit - (2005)
Unnamed Cr occurrence [7] Murdoch (1966)
Goat Mountain Alpine Mine - (2005)
Idria (New Idria) Rozzum Ridge Cr occurrence Gail E. Dunning (gedunning@juno.com)
Unspecified Cr occurrence [2] ouvarovite: American Journal of Science +3 other references
Idria Peak Buena Vista prospect (Buena Vista deposit) - (2005)
Clear Creek deposits www.mineralsocal.org
New Idria Mining District American Mineralogist 1965: 50: ...
Picacho Peak Bobcat A and Alta Anchor claims (Bobcat and Anchor claims) - (2005)
Harrison deposit - (2005)
Hines deposit - (2005)
San Domingo Palito deposit - (2005)
Victor claim (Victor Mine) Joseph F. Cooper Jr. et al. (2003)
Santa Rita Peak Santa Rita deposit - (2005)
San Bernardino County Calico Mts (Calico Hills) Calico District (Daggett District; Calico-Daggett area) Calico Unnamed Ni prospect [1] Van Nostrand Reinholt Press: 66. +3 other references
Yermo (Marian; Marion; Otis) Unnamed Cr occurrence [1] Murdoch (1966)
Victorville East of Victorville Unnamed Garnet-Vesuvianite occurrence [1] ? Bowen et al. (1954) +1 other reference
West Colton Slover Mountain Quarry (California Portland Cement Company Quarry; Colton Marble) MarekC pers.coll. Oct 2015
Santa Clara County Coyote Mining District Coyote O'Connell Mine (Greenwalls property; O'Connell Ranch Mine; O'Connell Number 1; Greenwalt) - (2005)
Shasta County Klamath Mountains Rattlesnake Hill County Line claim (Wildcat Creek claim) Van Nostrand Reinholt Press: 499. +2 other references
Forest Queen Mine (Union Forest Queen Mine; Bull Dog Mine; North Star No. 1 Mine; Rattlesnake Mine; Black Bird Mine; Grey Eagle; Gray Eagle claim; Mammoth claim) Van Nostrand Reinholt Press: 499. +2 other references
Sims Station Shotgun Creek Mine (Gill Mine; Primm and Dougherty group; Noble Electric Steel Company property) Kunz (1905) +2 other references
Sierra County Alleghany Mining District (Forest Mining District) Van Nostrand Reinholt Press: 499. +2 other references
Forest Doriss Mine (Dorriss; Chrome F N; Chrome P N) - (2005)
Downieville Mining District Downieville Oxford Mine (Oxford Mine and mill; Oxford lease and mill; Becky; Case and Myers; Mt. Holly; Gold Bluff; Good Hope; Good Hope Extension No. 2; Jefferson No. 2 claim; Milton claim) - (2005)
Sierra City Mining District Sierra City Milton claim (Redmayne and McGonigal prospect) - (2005)
Siskiyou County Dunsmuir Little Castle Creek Mine (Castle Crag Mine; Brown Mine) Pemberton (1983)
Klamath Mountains Bally Mountain Peg Leg Mine (Lambert claim; White and Brown Mine; Moffett Creek group; Chromite King Mine) Van Nostrand Reinholt Press: 500. +3 other references
Bear Mountain Youngs Valley group Doe Flat Chromite Mine (Comeback claim; Doe Flat claim) Van Nostrand Reinholt Press: 435 +4 other references
Callahan Mining District (Scott River Mining District) Camp Eden Martin Mine (Martin-McKeen Mine; McKeen Mine; Martin McKean Mine; Martin McKeer Mine) Van Nostrand Reinholt Press: 435. +3 other references
Copper Butte Seiad Creek Mine (No. 14 Mine; Northern Klamath Mountains Mine; Red Hills Mine; Reddy No. 2 Mine; Teddy Chrome Mine; Valley View; Mountain View) - (2005)
El Capitan Cyclone Gap Mine (Mammoth Mine) Van Nostrand Reinholt Press: 435 +4 other references
Yreka Southeast of Yreka Unspecified Cr occurrence Symons (1945) +1 other reference
Stanislaus County Black Wonder Mining District Copper Mountain Adobe Canyon group deposits (McGuire et al. deposits; McGuire Holbrook and Springer Lea; Southeast; Mountain View Mine; Mountain View claim; Gray Fox claim) - (2005)
Unspecified Cr occurrence (2) Van Nostrand Reinholt Press: 500. +3 other references
Tehama County Klamath Mountains Litttle Red Mountain group (Southern Pacific lease; Seagrave Beegum Mine) Sunshine Mine (Pine Grove; Red Mountain No. 3) - (2005)
North Elder Creek group (Joyce Mine; Hill Mine; Noble Electric Steel Company Mine; SW Hill Mine; Elder Creek Mine) Van Nostrand Reinholt Press: 500. +3 other references
Trinity County Klamath Mountains Carrville Mining District Carrville Unspecified Cr occurrence [1] Kunz (1905) +1 other reference
Trinity Mountains Altoona Mining District Boulder Peak Crow Creek group (Chapman-Kirby claims; McConnell-Kirby) Section 14 claim - (2005)
Tuolumne County Jacksonville Mining District Jacksonville King et al. (1990)
Jamestown District Jamestown Quigg Mine (Kahl Mine [1908]) Van Nostrand Reinholt Press: 500. +3 other references
Stent Mackey Mine - (2005)
Moccasin Peak area Marsh Flats Chrome Associates properties Bluepoint claim (Blue Point claim; Blue Point Mine) Van Nostrand Reinholt Press: 500. +2 other references
Buckhorn claim (Wildboar claim) Van Nostrand Reinholt Press: 500. +2 other references
Mum and Alice June Mine (Alice June claim; Mum claim; Mum Extension claim; Alice June Extension claim; Bud's Mine) - (2005)
Yosemite Junction McCormick Mine (McCormick property; Terry and Sell lease [WWI]) Van Nostrand Reinholt Press: 500. +2 other references
Yuba County Red Lodge Mine Melhase (1935c) +1 other reference
Colorado Fremont County Eight Mile Park Pegmatite Mining District Mica Lode Mine (Mica Hill Mine) Eckel et al. (1997)
Maine Knox County Union Harriman prospect Rainville et al. (1976) +1 other reference
Michigan Genesee County Flushing Heinrich et al. (2004)
Nevada Lyon County Singatse Range Yerington Mining District Ludwig Ludwig Mine Castor et al. (2004)
New Jersey Sussex County Ogdensburg Sterling Hill Frondel et al. (1972)
New Mexico Doña Ana County Organ Mountains Organ Mining District South Canyon Mining District Northrop et al. (1996)
New York Putnam County Dorothy M. Schlegal (1957)
Oregon Grant County Canyon City Mining District Chambers Mine (George Len) - (2005)
George Len Lode Occurrence - (2005)
Josephine County Central Illinois River Mining District Old Casey - (2005)
Rose Claim (Nichols Chrome No. 2) - (2005)
Chrome Ridge Mining District Hard-To-Get Claim (Catty Buck) - (2005)
Pearsoll Peak area Twin Cedars claims - (2005)
Young's Mine (Dailey Dozen Claims) - (2005)
Waldo Mining District Low Boy Claim - (2005)
Pennsylvania Lancaster County Little Britain Township Texas Wood's Chrome Mine Lapham & Geyer +1 other reference
Vermont Orleans & Lamoille Cos. Lowell & Eden Belvidere Mountain Quarries Rocks & Min. Vol. 71 (1996)
Washington Ferry County San Poil Mining District (Keller Mining District) Gemini Prospect Valentine et al. (1960) +1 other reference
Whatcom County Sisters Mining District Galbraith Prospect Valentine et al. (1960) +2 other references
Twin Sisters Mountain Cannon (1975)
Wyoming Carbon County Cooper Hill District W. Dan Hausel (1994)