Lucasite-(Ce) (original) (raw)
A valid IMA mineral species
About Lucasite-(Ce)Hide
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Specific Gravity:
5.00 (Calculated)
Crystal System:
Monoclinic
Name:
Named in 1987 by Ernest H. Nickel, Ian E. Grey, and Ian C. Madsen in honor of Mr. Hans Lucas, Australian geologist with the CRA Exploration Pty. Ltd., who first noticed the mineral during examination of lamproite concentrates.
This page provides mineralogical data about Lucasite-(Ce).
Unique IdentifiersHide
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Long-form identifier:
mindat:1:1:2449:1
9ef85b23-4345-4f35-b205-03614023496b
IMA Classification of Lucasite-(Ce)Hide
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Type description reference:
Classification of Lucasite-(Ce)Hide
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4.DH.10
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
H : With large (+- medium-sized) cations; sheets of edge-sharing octahedra
8.3.5.1
8 : MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
3 : AB2O6
7.9.10
7 : Oxides and Hydroxides
9 : Oxides of Ti
Mineral SymbolsHide
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As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Lca-Ce | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Lucasite-(Ce)Hide
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Hardness:
VHN10=761 - 900 kg/mm2 - Vickers
Cleavage:
Distinct/Good
Good on {001}, may be a parting
Density:
5.00 g/cm3 (Calculated)
Optical Data of Lucasite-(Ce)Hide
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Colour in reflected light:
gray
Internal Reflections:
brown
Chemistry of Lucasite-(Ce)Hide
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Mindat Formula:
CeTi2(O,OH)6
Crystallography of Lucasite-(Ce)Hide
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Crystal System:
Monoclinic
Cell Parameters:
a = 5.178(1) Å, b = 8.756(4) Å, c = 9.768(5) Å
β = 93.52(4)°
Ratio:
a:b:c = 0.591 : 1 : 1.116
Unit Cell V:
442.03 ų (Calculated from Unit Cell)
Comment:
Point Group: 2/m or m.; : Space Group: C2/c or Cc; structure refined in I2/a
Crystal StructureHide
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| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0001128 | Lucasite-(Ce) | Nickel E H, Grey I E, Madsen I C (1987) Lucasite-(Ce), CeTi2(O,OH)6, a new mineral from Western Australia: Its description and structure American Mineralogist 72 1006-1010 |  |
1987 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder DiffractionHide
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Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.376 Å | (10) |
| 3.203 Å | (8) |
| 2.584 Å | (7) |
| 3.257 Å | (6) |
| 1.8306 Å | (6) |
| 2.225 Å | (5) |
| 2.541 Å | (4) |
Geological EnvironmentHide
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Type Occurrence of Lucasite-(Ce)Hide
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General Appearance of Type Material:
discrete subhedral grains
Place of Conservation of Type Material:
Western Australia Museum, Perth, M.75.1991; Museum Victoria, Melbourne, Australia, M38083; The Natural History Museum, London, England; National Museum of Natural History, Washington, D.C., USA, 163783.
Geological Setting of Type Material:
olivine lamproite diatreme
Associated Minerals at Type Locality:
Reference:
Nickel, E.H., Grey, I.E., Madsen, I.C. (1987) Lucasite-(Ce), CeTi2(O,OH)6, a new mineral from Western Australia: Its, description and structure. American Mineralogist: 72: 1006-1010.
Synonyms of Lucasite-(Ce)Hide
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Other Language Names for Lucasite-(Ce)Hide
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Common AssociatesHide
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Associated Minerals Based on Photo Data:
Related Minerals - Strunz-mindat GroupingHide
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| 4.DH. | Fluornatropyrochlore | (Na,Pb,Ca,REE,U)2Nb2O6F | Iso. m_3_m _(_4/_m_32/m ) |
|---|---|---|---|
| 4.DH. | Roméite Group | A2(Sb5+)2O6Z | |
| 4.DH. | Hydroxykenomicrolite | (◻,Na,Sb3+)2Ta2O6(OH,Cs) | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH. | Fluornatroroméite | (Na,Ca)2Sb2(O,OH)6F | |
| 4.DH. | Oxyplumboroméite | Pb2Sb2O6O | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH. | Cesiokenopyrochlore | ◻Nb2(O,OH)6(Cs,◻) | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH. | Oxyyttrobetafite-(Y) | Y2Ti2O6O | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH.05 | Brannerite | UTi2O6 | Mon. 2/m : _B_2/m |
| 4.DH.05 | Orthobrannerite | U4+U6+Ti4O12(OH)2 | Orth. |
| 4.DH.05 | Thorutite | (Th,U,Ca)Ti2(O,OH)6 | Mon. |
| 4.DH.10 | Kassite | CaTi2O4(OH)2 | Mon. 2/m : _P_21/b |
| 4.DH.15 va | Alumotungstite | ◻2W2O6(H2O) | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH.15 | Bismutomicrolite (of Hogarth 1977) | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m | |
| 4.DH.15 | Hydroplumboelsmoreite | (Pb,◻)(W,Fe3+)2O6 · H2O | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH.15 | Hydropyrochlore | (H2O,◻)2Nb2(O,OH)6(H2O) | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH.15 | Plumbomicrolite (of Hogarth 1977) | ||
| 4.DH.15 | Stibiomicrolite (of Groat et al.) | ||
| 4.DH.15 | Strontiopyrochlore (of Hogarth 1977) | A2Nb2(O,OH)6Z | |
| 4.DH.15 | Fluornatromicrolite | (Na1.5Bi0.5)Ta2O6F | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH.15 | Bismutopyrochlore (of Chukanov et al.) | (Bi,Ca,U,Pb)2-xNb2(O,OH)6(OH) | Amor. |
| 4.DH.15 | Hydrokenoelsmoreite | ◻2W2O6(H2O) | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH.15 | Fluorcalciomicrolite | (Ca,Na)2(Ta,Nb)2O6F | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH.15 | Oxycalciobetafite | Ca2(Ti,Nb)2O6O | |
| 4.DH.15 va | Yttromicrolite (of Hogarth) | (Ca,Y3+,U,Na)2-x(Ta,Nb,Ti,Fe3+)2O7 | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH.15 | Oxynatropyrochlore | (Na,Ca,U)2Nb2O6(O,OH) | |
| 4.DH.15 | Hydroxycalciopyrochlore | (Ca,Na,U,◻)2(Nb,Ti)2O6(OH) | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH.15 | Fluorcalciopyrochlore | (Ca,Na)2(Nb, Ti)2O6F | Iso. |
| 4.DH.15 | Oxycalciopyrochlore | Ca2Nb2O6O | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH.15 | Fluorstrontiopyrochlore | (Sr,◻)2Nb2(O,OH)6F | |
| 4.DH.15 | Oxyplumbopyrochlore | Pb2Nb2O6O | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH.15 | Kenoplumbopyrochlore | (Pb,◻)Nb2O6(◻,O) | |
| 4.DH.15 | Oxyyttropyrochlore-(Y) | (Y,◻)2Nb2O6O | |
| 4.DH.15 | Fluorkenopyrochlore | (◻,Sr,Ce,Ca,Na)2(Nb,Ti)2O6F | |
| 4.DH.15 | Oxyuranobetafite | (U,Ca,◻)2(Ti,Nb)2O6O | |
| 4.DH.15 | Oxycalciomicrolite | Ca2Ta2O6O | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH.15 | Oxystannomicrolite | Sn2Ta2O6O | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH.15 | Kenoplumbomicrolite | (Pb,◻)2Ta2O6(◻,OH,O) | Iso. |
| 4.DH.15 | Oxystibiomicrolite | (Sb3+,Ca)2Ta2O6O | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH.15 | Hydromicrolite | (H2O,◻)2Ta2(O,OH)6(H2O) | |
| 4.DH.15 | Hydrokenomicrolite | (◻,H2O)2Ta2(O,OH)6(H2O) | Iso. m_3_m _(_4/_m_32/m ) |
| 4.DH.15 | Hydroxymanganopyrochlore | (Mn2+,Th,Na,Ca,REE)2(Nb,Ti)2O6(OH) | Iso. m_3(2/m_3) |
| 4.DH.15 | Hydroxycalciomicrolite | Ca1.5Ta2O6(OH) | Iso. 432 : _P_4232 |
| 4.DH.15 | Fluorplumbopyrochlore | (Pb,Y,Th,U,Na,Ca)2-x(Nb,Ti)2O6F | Iso. |
| 4.DH.15 | Hydroxyplumbopyrochlore | (Pb1.5◻0.5)Nb2O6(OH) | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH.15 | Oxynatromicrolite | (Na,Ca,U)2(Ta,Nb)2O6(O,F) | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH.15 | Fluorhydropyrochlore | ||
| 4.DH.15 | Hydroxykenoelsmoreite | (◻,Pb)2(W,Fe3+,Al)2(O,OH)6(OH) | Trig. 3 : _R_3 |
| 4.DH.15 | Hydrokenopyrochlore | (◻,x)2Nb2O6(H2O,Cs) | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH.15 | Hydroxykenopyrochlore | (◻,Ce,Ba)2(Nb,Ti)2O6(OH,F) | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH.15 | Hydroxynatropyrochlore | (Na,Ca,Ce)2Nb2O6(OH) | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH.15 | Hydroxynatromicrolite | (Na,Bi3+,◻)2Ta2O6(OH) | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH.15 | Unnamed (Sb-analogue of Hydroxymanganopyrochlor) | (Mn,Ca,Y)2(Sb,Ti)2O6(OH) | |
| 4.DH.15 | Oxybismutomicrolite | (Bi1.33◻0.67)Σ2Ta2O6O | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH.15 | Oxyplumbopyrochlore | Pb2Nb2O6O | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH.20 | Bindheimite | Pb2Sb2O6O | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH.20 | Hydroxycalcioroméite | (Ca,Sb3+)2(Sb5+,Ti)2O6(OH) | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH.20 | Monimolite | Pb2Sb5+2O7 | Iso. m_3_m _(_4/_m_32/m ) |
| 4.DH.20 | Cuproroméite | Cu2Sb2(O,OH)7 | Iso. |
| 4.DH.20 | Stetefeldtite | Ag2Sb2(O,OH)7 | Iso. |
| 4.DH.20 | Stibiconite | Sb3+Sb5+2O6(OH) | Iso. m_3_m _(_4/_m_32/m ) |
| 4.DH.20 | Fluorcalcioroméite | (Ca,Na,◻)2Sb5+2(O,OH)6F | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH.20 | Oxycalcioroméite | Ca2Sb2O6O | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH.20 | Hydroxyferroroméite | (Fe2+1.5◻0.5)Sb5+2O6(OH) | Iso. m_3_m _(_4/_m_32/m ) : F d_3_m |
| 4.DH.25 | Rosiaite | PbSb5+2O6 | Trig. 3_m_ _(_32/m ) : P_31_m |
| 4.DH.30 | Zirconolite | CaZrTi2O7 | Orth. |
| 4.DH.30 | Laachite | (Ca,Mn)2Zr2Nb2TiFeO14 | Mon. 2/m : _B_2/b |
| 4.DH.30 | Nöggerathite-(Ce) | (Ce,Ca)2Zr2(Nb,Ti)(Ti,Nb)2Fe2+O14 | Orth. m m m _(_2/_m_2/_m_2/m ) : C m c a |
| 4.DH.30 | Stefanweissite | (Ca,REE)2Zr2(Nb,Ti)(Ti,Nb)2Fe2+O14 | Orth. m m m _(_2/_m_2/_m_2/m ) : C m c a |
| 4.DH.35 | Liandratite | U(Nb,Ta)2O8 | Trig. 3_m_ _(_32/m ) : P_31_m |
| 4.DH.35 | Petscheckite | UFe(Nb,Ta)2O8 | Hex. |
| 4.DH.40 | Ingersonite | Ca3Mn2+Sb5+4O14 | Trig. 32 : _P_3121 |
| 4.DH.45 | Pittongite | Na0.22(W,Fe3+)(O,OH)3 · 0.44H2O | Hex. 6_m_2 : _P_6_m_2 |
| 4.DH.50 | Tazzoliite | Ba4-xNaxTi2Nb3SiO17[PO2(OH)2]x(OH)(1-2x) | Orth. m m m _(_2/_m_2/_m_2/m ) : F m m m |
Other InformationHide
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Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Lucasite-(Ce)Hide
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References for Lucasite-(Ce)Hide
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Localities for Lucasite-(Ce)Hide
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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.
Locality ListHide
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- 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.
| Angola | |
|---|---|
| Huíla Province Quilengues ⓘ Mount Bonga | Amores-Casals et al. (2019) |
| Australia (TL) | |
| Western Australia Wyndham-East Kimberley Shire ⓘ Argyle Diamond Mine (TL) | Nickel & Nichols +1 other reference |
| Canada | |
| British Columbia Golden Mining Division ⓘ Ice River Alkaline Complex | Canadian Museum of Nature collection |
| Norway | |
| Buskerud Flesberg Vinoren Silver Mine Field Vinoren Southern Mines ⓘ Klausstollen | Zozulya et al. (2020) |
| Russia | |
| Chelyabinsk Oblast Vishnevye Mountains Dolgaya Mt. ⓘ Unnamed quarry | Попова et al. (2019) |
| Murmansk Oblast Khibiny Massif ⓘ Koashva Mt | PEKOV et al. (2013) |
| ⓘ Koashva Open Pit | In the collection of Lukasz Kruszewski. |
| Primorsky Krai Mikhaylovsky District ⓘ Pavlovskoe REE-coal deposit | V.V. Seredin data |
| South Africa | |
| North West Bojanala Platinum District Municipality Moses Kotane Local Municipality ⓘ Pilanesberg Alkaline Ring Complex ? | Mitchell et al. (2004) |
| Spain | |
| Canary Islands Santa Cruz de Tenerife Province Tenerife ⓘ Alcala | Dill et al. (2023) |
| Candelaria Barranco Hondo ⓘ Lava flow | Dill et al. (2023) |
| ⓘ Centinela | Dill et al. (2023) |
| ⓘ Playa de Enramada | Dill et al. (2023) |
| ⓘ Playa de San Juan | Dill et al. (2023) |