Huntite Mineral Data + 
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- 14.4.3.1 Huntite CaMg3(CO3)4 R 32 3 2
- V/B.03-10 Dolomite CaMg(CO3)2 R 3 3
- V/B.03-20 Ankerite Ca(Fe,Mg,Mn)(CO3)2 R 3 3
- V/B.03-30 Kutnohorite Ca(Mn,Mg,Fe)(CO3)2 R 3 3
- V/B.03-40 Minrecordite CaZn(CO3)2 R 3 3
- V/B.03-50 Norsethite BaMg(CO3)2 R 32 3 2
- V/B.03-70 Huntite CaMg3(CO3)4 R 32 3 2
- V/B.03-80 Benstonite (Ba,Sr)6(Ca,Mn)6Mg(CO3)13 R 3 3
General Huntite Information |
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 Chemical Formula: |
CaMg3(CO3)4 | ||
| Composition: |
Molecular Weight = 353.03 gm | ||
| Calcium 11.35 % Ca 15.88 % CaO | |||
| Magnesium 20.65 % Mg 34.25 % MgO | |||
| Carbon 13.61 % C 49.87 % CO2 | |||
| Oxygen 54.38 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
CaMg3(CO3)4 | ||
| IMA Status: |
Valid Species (Pre-IMA) 1955 | ||
| Locality: |
Link to MinDat.org Location Data. | ||
| Synonym: |
ICSD 201729 | ||
| PDF 14-409 | |||
Huntite Image | |||
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Images:
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Huntite Crystallography |
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| Axial Ratios: |
a:c = 1:0.82305 | ||
| Cell Dimensions: |
a = 9.5027, c = 7.8212, Z = 3; V = 611.64 Den(Calc)= 2.88 | ||
| Crystal System: |
Trigonal - TrapezohedralH-M Symbol (3 2) Space Group: R 32 | ||
| X Ray Diffraction: |
By Intensity(I/Io): 2.833(1), 1.972(0.3), 2.888(0.2), | ||
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Crystal Structure:
Mouse |
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Physical Properties of Huntite |
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| Cleavage: |
None | ||
| Color: |
White, Lemon white. | ||
| Density: |
2.696 | ||
| Fracture: |
Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments. | ||
| Hardness: |
1-2 - Between Talc and Gypsum | ||
| Luminescence: |
Fluorescent. | ||
| Luster: |
Earthy (Dull) | ||
| Streak: |
white | ||
Optical Properties of Huntite |
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| Optical Data: |
NCalc= 1.6 - from Gladstone-Dale relationship (KC = 0.2071) where Ncalc=Dcalc*KC+1 NCalc= 1.56 - from Gladstone-Dale relationship (KC = 0.2071) where Ncalc=Dmeas*KC+1 |
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Calculated Properties of Huntite |
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| Electron Density: |
relectron=2.87 gm/cc |
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| Fermion Index |
Fermion Index = 0.02256 Boson Index = 0.97744 |
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| Photoelectric: |
PEHuntite = 2.03 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Huntite is Not Radioactive |
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Huntite Classification |
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| Dana Class: |
14.4.3.1 (14)Anhydrous Carbonates | ||
| (14.4)with Compound Formula A+2 B++2 (CO3)4 | |||
| (14.4.3)Dana Group | |||
| Strunz Class: |
V/B.03-70 V - Nitrates, Carbonates and Borates | ||
| V/B - Waterfree carbonates [CO3]2- without unfamiliar anions | |||
| V/B.03 - Dolomite group | |||
Other Huntite Information |
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| References: |
PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) | ||
| See Also: |
Links to other databases for Huntite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - Crocoite.com Mineral Locations 4 - EUROmin Project 5 -Google Images 6 -Google Scholar 7 -Handbook of Mineralogy (UofA) 8 -MinDAT 9 -MinMax(Deutsch) 10 -MinMax(English) 11 -Mineralienatlas (Deutsch) 12 -QUT Mineral Atlas 13 - WWW-MINCRYST 14 -École des Mines de Paris Search for Huntite using: Visit our Advertisers for Huntite : Translate Huntite Mineral Data : Ask about Huntite here : Print or Cut-and-Paste your Huntite Specimen Label here :
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