General Richelsdorfite Information![]() Ca2Cu5Sb(AsO4)4Cl(OH)6•6(H2O) |
![]() Molecular Weight = 1,320.90 gm |
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Calcium 6.07 % Ca 8.49 % CaO |
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Copper 24.05 % Cu 27.08 % Cu2O |
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Antimony 9.22 % Sb 11.03 % Sb2O3 |
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Arsenic 22.69 % As 34.80 % As2O5 |
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Hydrogen 1.37 % H 12.27 % H2O |
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Chlorine 2.68 % Cl 2.68 % Cl |
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- %
Cl -0.61 % -O=Cl2 |
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Oxygen 33.91 % O |
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100.00 % 95.76 % = TOTAL OXIDE |
![]() Ca2Cu5Sb(AsO4)4Cl(OH)6•6(H2O) |
![]() Found in Permian-aged sandstone at the type locality. |
![]() Approved IMA 1983 |
![]() Richelsdorf Mountains, Hesse, Germany. Link to MinDat.org Location Data. |
![]() Named for the locality. |
![]() Richelsdorfite + Pronunciation |
![]() ![]() ICSD 62339 |
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PDF 46-1462 |
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Richelsdorfite Crystallography![]() a:b:c =0.9909:1:0.9495 |
![]() a = 14.078, b = 14.207, c = 13.49, Z = 4; beta = 101.06° V = 2,647.97 Den(Calc)= 3.31 |
![]() Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m |
![]() By Intensity(I/Io): 13.29(1), 3.132(0.9), 2.776(0.35), |
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| Physical Properties of Richelsdorfite![]() {001} Perfect |
![]() Sky blue, Turquoise. |
![]() 3.2 - 3.3, Average = 3.25 |
![]() 2 - Gypsum |
![]() Vitreous (Glassy) |
![]() greenish blue |
| Optical Properties of Richelsdorfite![]() CI meas= 0.011 (Superior) - where the CI = (1-KPDmeas/KC) |
CI calc= 0.029 (Excellent) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.204,KPDmeas= 0.2078,KC= 0.2102 Ncalc = 1.67 - 1.7 ![]() Biaxial (-), a=1.64, b=1.692, g=1.694, bire=0.0540, 2V(Calc)=20, 2V(Meas)=10-15. |
| Calculated Properties of Richelsdorfite![]() Bulk Density (Electron Density)=3.09 gm/cc |
note: Specific Gravity of Richelsdorfite =3.25 gm/cc. ![]() Fermion Index = 0.0002467739 |
Boson Index = 0.9997532261 ![]() PERichelsdorfite = 55.70 barns/electron |
U=PERichelsdorfite x rElectron Density= 171.86 barns/cc. ![]() GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Richelsdorfite is Not Radioactive | Richelsdorfite Classification![]() 42.07.15.01 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen |
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(42.07)where (AB)5 (XO4)3 Zq · x(H2O) |
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(42.07.15)Richelsdorfite Group |
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![]() 08.DK.25 08 - PHOSPHATES, ARSENATES, VANADATES |
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08.D - Phosphates, etc |
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08.DK -With large and medium-sized cations, (OH, etc.):RO4 > 1:1 and < 2:1 |
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| Other Richelsdorfite Information![]() PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) |
![]() Links to other databases for Richelsdorfite : |
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 15 - WWW-MINCRYST Search for Richelsdorfite using: Visit our Advertisers for Richelsdorfite : A Bijoux Google Search for RichelsdorfiteAdam's Minerals Google Search for Richelsdorfite Cape Minerals Google Search for Richelsdorfite Dakota Matrix Minerals Google Search for Richelsdorfite Excalibur Mineral Corp. Google Search for Richelsdorfite Exceptional Minerals Google Search for Richelsdorfite John Betts Fine Minerals Search for Richelsdorfite McDougall Minerals Google Search for Richelsdorfite Mineral News Website Link Rock and Mineral Shows Google Search for Richelsdorfite Weinrich Minerals, Inc. Google Search for Richelsdorfite Ask about Richelsdorfite here : Print or Cut-and-Paste your Richelsdorfite Specimen Label here :
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