General Jouravskite Information![]() Ca3Mn++++(SO4,CO3)2(OH)6•12(H2O) |
![]() Molecular Weight = 667.50 gm |
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Calcium 18.01 % Ca 25.20 % CaO |
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Manganese 8.23 % Mn 13.02 % MnO2 |
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Hydrogen 4.53 % H 40.48 % H2O |
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Carbon 0.90 % C 3.30 % CO2 |
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Sulfur 7.21 % S 17.99 % SO3 |
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Oxygen 61.12 % O |
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100.00 % 100.00 % = TOTAL OXIDE |
![]() Ca3Mn4+(SO4)1.5(CO3)0.5(OH)6•12(H2O) |
![]() Secondary mineral found on other manganese minerals. |
![]() Approved IMA 1965 |
![]() Tachgagalt No. 2 vein, Anti Atlas, Morocco. Link to MinDat.org Location Data. |
![]() Named for Georges Jouravsky (1896-1964), chief geologist, Division de la Geologie du Maroc. |
![]() Jouravskite + Pronunciation |
![]() ![]() ICSD 26187 |
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PDF 18-668 |
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Jouravskite Crystallography![]() a:c = 1:0.94936 |
![]() a = 11.06, c = 10.5, Z = 2; V = 1,112.32 Den(Calc)= 1.99 |
![]() Hexagonal - DipyramidalH-M Symbol (6/m) Space Group: P 63/m |
![]() By Intensity(I/Io): 9.6(1), 3.81(0.6), 5.53(0.6), |
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| Physical Properties of Jouravskite![]() {100} Good |
![]() Green orange, Greenish yellow. |
![]() 1.95 |
![]() Transparent |
![]() Granular - Generally occurs as anhedral to subhedral crystals in matrix. |
![]() 2.5 - Finger Nail |
![]() Vitreous (Glassy) |
![]() greenish white |
| Optical Properties of Jouravskite![]() green. |
![]() russet. |
![]() CI meas= -0.001 (Superior) - where the CI = (1-KPDmeas/KC) |
CI calc= 0.019 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2754,KPDmeas= 0.281,KC= 0.2807 Ncalc = 1.55 - 1.56 ![]() Uniaxial (-), e=1.54, w=1.556, bire=0.0160. |
| Calculated Properties of Jouravskite![]() Bulk Density (Electron Density)=2.02 gm/cc |
note: Specific Gravity of Jouravskite =1.95 gm/cc. ![]() Fermion Index = 0.0011827535 |
Boson Index = 0.9988172465 ![]() PEJouravskite = 4.68 barns/electron |
U=PEJouravskite x rElectron Density= 9.46 barns/cc. ![]() GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Jouravskite is Not Radioactive | Jouravskite Classification![]() 32.04.04.03 (32)Compound Sulfates |
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(32.04)(hydrous) with poly-anionic formula |
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(32.04.04)Charlesite Group |
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![]() 07.DG.15 07 - SULFATES (SELENATES, TELLURATES) |
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07.D - Sulfates (selenates, etc.) with additional anions, with H2O |
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07.DG -With large and medium sized cations; with NO3, CO3, B(OH)4, SiO4 or IO3 |
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| Other Jouravskite Information![]() NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8) |
![]() Links to other databases for Jouravskite : |
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 Jouravskite using: Visit our Advertisers for Jouravskite : A Bijoux Google Search for JouravskiteAdam's Minerals Google Search for Jouravskite Cape Minerals Google Search for Jouravskite Dakota Matrix Minerals Google Search for Jouravskite Excalibur Mineral Corp. Google Search for Jouravskite Exceptional Minerals Google Search for Jouravskite John Betts Fine Minerals Search for Jouravskite McDougall Minerals Google Search for Jouravskite Mineral News Website Link Rock and Mineral Shows Google Search for Jouravskite Weinrich Minerals, Inc. Google Search for Jouravskite Ask about Jouravskite here : Print or Cut-and-Paste your Jouravskite Specimen Label here :
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