Jokokuite Mineral Data + 
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- 29.6.7.1 Chalcanthite CuSO4·5(H2O) P1 1
- 29.6.7.2 Siderotil FeSO4·5(H2O) P1 1
- 29.6.7.3 Pentahydrite MgSO4·5(H2O) P1 1
- 29.6.7.4 Jokokuite MnSO4·5(H2O) P1 1
- VI/C.04-10 Pentahydrite MgSO4·5(H2O) P1 1
- VI/C.04-20 Siderotil FeSO4·5(H2O) P1 1
- VI/C.04-30 Jokokuite MnSO4·5(H2O) P1 1
- VI/C.04-40 Chalcanthite CuSO4·5(H2O) P1 1
General Jokokuite Information |
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 Chemical Formula: |
MnSO4·5(H2O) | ||
| Composition: |
Molecular Weight = 241.08 gm | ||
| Manganese 22.79 % Mn 29.43 % MnO | |||
| Hydrogen 4.18 % H 37.36 % H2O | |||
| Sulfur 13.30 % S 33.21 % SO3 | |||
| Oxygen 59.73 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
Mn2+(SO4)·5(H2O) | ||
| IMA Status: |
Approved IMA 1978 | ||
| Locality: |
Link to MinDat.org Location Data. | ||
| Synonym: |
ICSD 41202 | ||
| PDF 31-836 | |||
Jokokuite Image | |||
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Images:
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Jokokuite Crystallography |
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| Axial Ratios: |
a:b:c =0.5914:1:0.5691 | ||
| Cell Dimensions: |
a = 6.37, b = 10.77, c = 6.13, Z = 2; alpha = 98.767°, beta = 109.967°, gamma = 77.833° V = 381.88 Den(Calc)= 2.10 | ||
| Crystal System: |
Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1 | ||
| X Ray Diffraction: |
By Intensity(I/Io): 5.84(1), 2.72(0.72), 4.98(0.61), | ||
Physical Properties of Jokokuite |
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| Cleavage: |
None | ||
| Color: |
Light pink. | ||
| Density: |
2.03 | ||
| Diaphaniety: |
Transparent to Translucent | ||
| Hardness: |
2.5 - Finger Nail | ||
| Luster: |
Vitreous (Glassy) | ||
| Streak: |
white | ||
Optical Properties of Jokokuite |
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| Gladstone-Dale: |
CI meas= -0.027 (Excellent) - where the CI = (1-KPDmeas/KC) CI calc= 0.007 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2421,KPDmeas= 0.2504,KC= 0.2438 |
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| Optical Data: |
Biaxial (-), a=1.498, b=1.51, g=1.517, bire=0.0190, 2V(Calc)=74, 2V(Meas)=70-80. | ||
Calculated Properties of Jokokuite |
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| Electron Density: |
relectron=2.14 gm/cc |
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| Fermion Index |
Fermion Index = 0.00129 Boson Index = 0.99871 |
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| Photoelectric: |
PEJokokuite = 6.44 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Jokokuite is Not Radioactive |
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Jokokuite Classification |
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| Dana Class: |
29.6.7.4 (29)Hydrated Acid and Sulfates | ||
| (29.6)where A XO4 · x(H2O) | |||
| (29.6.7)Chalchanthite Group (Triclinic: P1¯) | |||
| Strunz Class: |
VI/C.04-30 VI - Sulfates,Chromates,Molybdates and Tungstates | ||
| VI/C - Water-bearing sulfates without unfamiliar anions. cations of medium size | |||
| VI/C.04 - Chalcanthite group | |||
Other Jokokuite Information |
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| References: |
PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) | ||
| See Also: |
Links to other databases for Jokokuite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 - WWW-MINCRYST 13 -École des Mines de Paris Search for Jokokuite using: Visit our Advertisers for Jokokuite : Translate Jokokuite Mineral Data : Ask about Jokokuite here : Print or Cut-and-Paste your Jokokuite Specimen Label here :
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