General Caminite Information![]() Mg7(SO4)5(OH)4•(H2O) |
![]() Molecular Weight = 736.50 gm |
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Magnesium 23.10 % Mg 38.31 % MgO |
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Hydrogen 0.82 % H 7.34 % H2O |
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Sulfur 21.77 % S 54.35 % SO3 |
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Oxygen 54.31 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
![]() Mg7(SO4)5(OH)4•(H2O) |
![]() Formed by the reaction of sea water with hydrothermal fluids in a midocean ridge submarine chimney vent. Unstable below 130 deg C., below which it hydrates and redissolves in sea wa ter. |
![]() Approved IMA 1983 |
![]() Along the East Pacific Rise at 21deg N Lat. Link to MinDat.org Location Data. |
![]() Named from the Latin caminus, for chimney, as the mineral occurs in undersea black-smoker chimneys. |
![]() ICSD 66174 |
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PDF 39-359 |
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Caminite Crystallography![]() a:c = 1:2.47909 |
![]() a = 5.239, c = 12.988, Z = 1; V = 356.48 Den(Calc)= 3.43 |
![]() Tetragonal - Ditetragonal DipyramidalH-M Symbol (4/m 2/m 2/m) Space Group: I 41/amd |
![]() By Intensity(I/Io): 3.345(1), 3.22(0.8), 1.871(0.5), |
| Physical Properties of Caminite![]() Colorless, White. |
![]() 2.58 - 2.79, Average = 2.68 |
![]() Transparent |
![]() 2.5 - Finger Nail |
![]() Vitreous (Glassy) |
![]() white |
| Optical Properties of Caminite![]() CI meas= -0.004 (Superior) - where the CI = (1-KPDmeas/KC) |
CI calc= 0.214 (Poor) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1554,KPDmeas= 0.1985,KC= 0.1978 Ncalc = 1.51 - 1.68 ![]() Uniaxial (-), e=1.532, w=1.534, bire=0.0020. |
| Calculated Properties of Caminite![]() Bulk Density (Electron Density)=2.70 gm/cc |
note: Specific Gravity of Caminite =2.69 gm/cc. ![]() Fermion Index = 0.02 |
Boson Index = 0.98 ![]() PECaminite = 1.85 barns/electron |
U=PECaminite x rElectron Density= 4.98 barns/cc. ![]() GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Caminite is Not Radioactive | Caminite Classification![]() 31.10.09.01 (31)Hydrated Sulfates Containing Hydroxyl or Halogen |
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(31.10)miscellaneous |
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(31.10.09)Dana Group |
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![]() 07.BB.05 07 - SULFATES (SELENATES, TELLURATES) |
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07.B - Sulfates (selenates, etc.) with Additional Anions, without H2O |
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07.BB -With medium-sized cations |
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| Other Caminite Information![]() NAME( AntBidBlaNic5) PHYS. PROP.(Am.Min.,Vol.71,p819-825,1986) OPTIC PROP.(Am.Min.,Vol.71,p819-825,1986) |
![]() Links to other databases for Caminite : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - EUROmin Project 4 - Ecole des Mines de Paris 5 - GeoScienceWorld 6 - Google Images 7 - Google Scholar 8 - Handbook of Mineralogy (MinSocAm) 9 - Handbook of Mineralogy (UofA) 10 - MinDAT 11 - Mineralienatlas (Deutsch) 12 - Online Mineral Museum 13 - QUT Mineral Atlas 14 - Ruff.Info Search for Caminite using: Visit our Advertisers for Caminite : A Bijoux Google Search for CaminiteAdam's Minerals Google Search for Caminite Cape Minerals Google Search for Caminite Dakota Matrix Minerals Google Search for Caminite Excalibur Mineral Corp. Google Search for Caminite Exceptional Minerals Google Search for Caminite John Betts Fine Minerals Search for Caminite McDougall Minerals Google Search for Caminite Mineral News Website Link Rock and Mineral Shows Google Search for Caminite Weinrich Minerals, Inc. Google Search for Caminite Ask about Caminite here : Print or Cut-and-Paste your Caminite Specimen Label here :
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