Rapidcreekite (original) (raw)

A valid IMA mineral species

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About RapidcreekiteHide

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Formula:

Ca2(SO4)(CO3) · 4H2O

Colour:

White, colourless.

Crystal System:

Orthorhombic

Name:

Named after the Rapid Creek area, Yukon, the type locality.

Unique IdentifiersHide

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Long-form identifier:

mindat:1:1:3366:0

1fcd91c9-7f48-430a-adb0-db0dcbe1839e

IMA Classification of RapidcreekiteHide

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Type description reference:

Roberts, Andrew C., Ansell, H. Gary, Jonasson, Ian R., Grice, Joel D., Ramik, Robert A. (1986) Rapidcreekite, a new hydrated calcium sulfate-carbonate from the Rapid Creek area, Yukon Territory. The Canadian Mineralogist, 24 (1) 51-54

Classification of RapidcreekiteHide

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7.DG.20

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
D : Sulfates (selenates, etc.) with additional anions, with H2O
G : With large and medium-sized cations; with NO3, CO3, B(OH)4, SiO4 or IO3

32.2.1.1

32 : COMPOUND SULFATES
2 : Hydrated Compound Sulfates

12.2.8

12 : Carbonates with other anions
2 : Carbonates with sulphate

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
Rck 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 RapidcreekiteHide

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Colour:

White, colourless.

Cleavage:

Perfect
Perfect on {010}; good on {100}.

Density:

2.21(1) g/cm3 (Measured) 2.239 g/cm3 (Calculated)

Optical Data of RapidcreekiteHide

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RI values:

_n_α = 1.516(1) _n_β = 1.518(1) _n_γ = 1.531(1)

2V:

Measured: 45° (3), Calculated: 43°

δ = 0.015

Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.

Chemistry of RapidcreekiteHide

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Mindat Formula:

Ca2(SO4)(CO3) · 4H2O

Crystallography of RapidcreekiteHide

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Crystal System:

Orthorhombic

Class (H-M):

m m m _(_2/_m_2/_m_2/m ) - Dipyramidal

Cell Parameters:

a = 15.49 Å, b = 19.18 Å, c = 6.15 Å

Ratio:

a:b:c = 0.808 : 1 : 0.321

Unit Cell V:

1,827.15 ų (Calculated from Unit Cell)

Crystal StructureHide

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ID Species Reference Link Year Locality Pressure (GPa) Temp (K)
0019905 Rapidcreekite Onac B P, Effenberger H S, Wynn J G, Povara I (2013) Rapidcreekite in the sulfuric acid weathering environment of Diana Cave, Romania American Mineralogist 98 1302-1309 2013 Diana Cave, Romania 0 293
0005481 Rapidcreekite Cooper M A, Hawthorne F C (1996) The crystal structure of rapidcreekite, Ca2(SO4)(CO3)(H2O)4, and its relation to the structure of gypsum The Canadian Mineralogist 34 99-106 1996 0 293

CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

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Powder Diffraction Data:

d-spacing Intensity
7.78 Å (100)
3.11 Å (80)
4.31 Å (70)
3.88 Å (70)
2.797 Å (60)
2.917 Å (50)
2.555 Å (50)

Geological EnvironmentHide

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Type Occurrence of RapidcreekiteHide

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General Appearance of Type Material:

in radiating sprays, isolated and in crusts.

Place of Conservation of Type Material:

Geological Survey of Canada, Ottawa, 64346; Canadian Museum of Nature, Ottawa, Canada, 49502, 50824.

Associated Minerals at Type Locality:

Reference:

Roberts, A.C., Ansell, H.G., Jonasson, I.R., Grice, J.D., Ramik, R.A. (1986) Rapidcreekite, a new hydrated calcium sulfate-carbonate from the Rapid Creek area, Yukon Territory. Canadian Mineralogist: 24: 51-54.

Synonyms of RapidcreekiteHide

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Other Language Names for RapidcreekiteHide

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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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7.DG. Mathesiusite K5(UO2)4(SO4)4(VO5) · 4H2O Tet. 4/m : _P_4/n
7.DG.05 Darapskite Na3(SO4)(NO3) · H2O Mon. 2/m : _P_21/m
7.DG.10 Clinoungemachite (Na, K, Fe, SO4) Mon. 2/m
7.DG.10 Humberstonite Na7K3Mg2(SO4)6(NO3)2 · 6H2O Trig. 3 : _R_3
7.DG.10 Ungemachite K3Na8Fe(SO4)6(NO3)2 · 6H2O Trig. 3 : _R_3
7.DG.15 Bentorite Ca6Cr2(SO4)3(OH)12 · 26H2O Trig. 3_m_ : P_31_c
7.DG.15 Charlesite Ca6(Al,Si)2(SO4)2[B(OH)4](OH,O)12 · 26H2O Trig. 3_m_ : P_31_c
7.DG.15 Ettringite Ca6Al2(SO4)3(OH)12 · 26H2O Trig. 3_m_ : P_31_c
7.DG.15 Jouravskite Ca3Mn4+(SO4)(CO3)(OH)6 · 12H2O Hex. 6 : _P_63
7.DG.15 Sturmanite Ca6Fe3+2(SO4)2.5[B(OH)4](OH)12 · 25H2O Trig. 3_m_ : P_31_c
7.DG.15 Thaumasite Ca3(SO4)[Si(OH)6](CO3) · 12H2O Hex. 6 : _P_63
7.DG.15 Carraraite Ca3(SO4)[Ge(OH)6](CO3) · 12H2O Hex.
7.DG.15 Buryatite Ca3(Si,Fe3+,Al)(SO4)B(OH)4(OH,O)6 · 12H2O Trig. 3_m_ : P_31_c
7.DG.15 Birunite Ca18(SiO3)8.5(CO3)8.5SO4 · 15H2O(?)
7.DG.15 Hielscherite Ca3Si(SO4)(SO3)(OH)6 · 11H2O Hex. 6 : _P_63
7.DG.15 Kottenheimite Ca 3Si(SO4)2(OH)6 · 12H2O Hex. 6/m : _P_63/m
7.DG.15 Imayoshiite Ca3Al(CO3)[B(OH)4](OH)6 · 12H2O Hex. 6 : _P_63
7.DG.15 Tatarinovite Ca3Al(SO4)[B(OH)4](OH)6 · 12H2O Hex. 6 : _P_63
7.DG.15 Siwaqaite Ca6Al2(CrO4)3(OH)12 · 26H2O Trig. 3_m_ : P_31_c
7.DG.15 Chiyokoite Ca3Si(CO3)[B(OH)4]O (OH)5 · 12H2O Hex. 6 : _P_63
7.DG.25 Tatarskite Ca6Mg2(SO4)2(CO3)2(OH)4Cl4 · 7H2O Orth.
7.DG.30 Nakauriite Cu8(SO4)4(CO3)(OH)6 · 48H2O Orth.
7.DG.35 Chessexite (Na,K)4Ca2(Mg,Zn)3Al8(SO4)10(SiO4)2 · 40H2O Orth.
7.DG.40 Carlosruizite K6(Na,K)4Na6Mg10(SeO4)12(IO3)12 · 12H2O Trig. 3_m_ _(_32/m ) : _P_3_c_1
7.DG.40 Fuenzalidaite K6(Na,K)4Na6Mg10(SO4)12(IO3)12 · 12H2O Trig. 3_m_ _(_32/m ) : _P_3_c_1
7.DG.45 Chelyabinskite (Ca,Mg)3(SO4,CO3)2[Si(OH)6] · 9H2O (?) Orth.
7.DG.55 Ramazzoite [Mg8Cu12(PO4)(CO3)4(OH)24(H2O)20][(H0.33SO4)3(H2O)36] Iso. 43_m_ : P_43_m
7.DG.60 Witzkeite Na4K4Ca(NO3)2(SO4)4 · 2H2O Mon. 2/m : _B_2/b

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.

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References for RapidcreekiteHide

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Reference List:

Roberts, Andrew C., Ansell, H. Gary, Jonasson, Ian R., Grice, Joel D., Ramik, Robert A. (1986) Rapidcreekite, a new hydrated calcium sulfate-carbonate from the Rapid Creek area, Yukon Territory. The Canadian Mineralogist, 24 (1) 51-54

Hawthorne, F.C., Bladh, K.W., Burke, E.A.J, Grew, E.S., Langley, R.H., Puciewicz, J., Roberts, A.C., Schedler, R.A., Shigley, J.E., Vanko, D.A. (1987) New mineral names. American Mineralogist: 72: 222-230.

Localities for RapidcreekiteHide

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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.

Canada
Saskatchewan ⓘ North lngebright Lake Shang (2000)
Yukon Dawson mining district ⓘ Big Fish River Robinson et al. (1992)
ⓘ Rapid Creek (TL) 150-152. +4 other references
Kulan Camp (Area A; Area 1) ⓘ Crosscut Creek Robinson et al. (1992)
Czech Republic
Central Bohemian Region Beroun District Tetín ⓘ Koda Cave ? Žák K. et al. (2010)
Egypt
Giza Governorate Black Desert ⓘ El Bahariya Depression Salama et al. (2012)
Germany
Baden-Württemberg Freiburg Region Rottweil Schenkenzell Wittichen Burgfelsen ⓘ Johann Mine American Mineralogist: 76: 2021.
Saxony Erzgebirgskreis Annaberg-Buchholz Kleinrückerswalde ⓘ Uranus Mine Möhn et al. (08/2020)
Thuringia Saalfeld-Rudolstadt District Saalfeld Garnsdorf ⓘ Jeremias Glück Mine (Fairy Grotto) Rüger +1 other reference
Greece
Attica East Attica Lavreotiki Lavrion Mining District Km 3 Kaminiza mines ⓘ Esperanza Mine Rieck et al. (2018)
Norway
Buskerud Kongsberg Overberget Mining Field ⓘ Mildigkeit Gottes Mine (Mildigkeit Mine) Raade (1989) +1 other reference
Poland
Lower Silesian Voivodeship Lubin County Lubin ⓘ Lubin Główny shafts (Lubin mine) Material analysed by University of ...
Silesian Voivodeship ⓘ Katowice - Piekary Śląskie area slag dumps Warchulski et al. (2014) +1 other reference
Piekary Śląskie Brzeziny Śląskie Orzeł Biały mine ⓘ Orzeł Biały dumps Warchulski et al. (2015)
Tarnowskie Góry County Miasteczko Śląskie ⓘ HC Miasteczko Śląskie S.A. Zinc Smelting Plant Nowinska (2020)
Romania
Caraş-Severin County Băile Herculane ⓘ Diana Cave H2S-rich environment of Diana Cave (Romania) +2 other references
Russia
Chelyabinsk Oblast Kopeysk ⓘ Tsentral'naya Mine (Central mine) Avdontceva et al. (2021)
Korkinsky District Korkino ⓘ Korkinskii coal quarry Pekov (1998)