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General Misenite Information |
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 Chemical Formula: |
K8H8(SO4)7 (?) | ||
| Composition: |
Molecular Weight = 991.28 gm | ||
| Potassium 31.55 % K 38.01 % K2O | |||
| Hydrogen 0.61 % H 5.45 % H2O | |||
| Sulfur 22.64 % S 56.54 % SO3 | |||
| Oxygen 45.19 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
K8H6(SO4)7 | ||
| Environment: |
Found as a transient efflorescence in a fumarole. | ||
| IMA Status: |
Valid Species (Pre-IMA) 1849 | ||
| Locality: |
Cape Miseno, near Naples, Italy. Link to MinDat.org Location Data. | ||
| Name Origin: |
Named after its locality. | ||
| Name Pronunciation: |
Misenite  |
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Misenite Image | |||
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Images:
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Misenite Crystallography |
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| Axial Ratios: |
a:b:c =3.2376:1:1.226 | ||
| Cell Dimensions: |
a = 23, b = 7.104, c = 8.71, Z = 2; beta = 102.66° V = 1,388.54 Den(Calc)= 2.37 | ||
| Crystal System: |
Monoclinic | ||
| X Ray Diffraction: |
By Intensity(I/Io): 4.24(1), 3.65(0.6), 4.83(0.4),4.92(0.4), 2.89(0.3), 3.49(0.3), 3.95(0.3), 2.35(0.2), | ||
Physical Properties of Misenite |
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| Cleavage: |
{010} Distinct | ||
| Color: |
Colorless, Grayish white. | ||
| Density: |
2.32 | ||
| Diaphaneity: |
Transparent to Translucent | ||
| Habit: |
Acicular - Occurs as needle-like crystals. | ||
| Habit: |
Aggregates - Made of numerous individual crystals or clusters. | ||
| Habit: |
Fibrous - Crystals made up of fibers. | ||
| Luster: |
Silky - Pearly | ||
| Streak: |
white | ||
Optical Properties of Misenite |
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| Gladstone-Dale: |
CI meas= -0.073 (Fair) - where the CI = (1-KPDmeas/KC) CI calc= -0.05 (Good) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2028,KPDmeas= 0.2072,KC= 0.1931 Ncalc = 1.45 - 1.46 |
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| Optical Data: |
Biaxial (+), a=1.475, b=1.48, g=1.487, bire=0.0120, 2V(Calc)=82, 2V(Meas)=81. | ||
Calculated Properties of Misenite |
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| Electron Density: |
Bulk Density (Electron Density)=2.36 gm/cc note: Specific Gravity of Misenite =2.37 gm/cc. |
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| Fermion Index: |
Fermion Index = 0.0019539786 Boson Index = 0.9980460214 |
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| Photoelectric: |
PEMisenite = 4.51 barns/electron U=PEMisenite x relectron= 10.66 barns/cc. |
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| Radioactivity: |
GRapi = 453.78 (Gamma Ray American Petroleum Institute Units)
Estimated Radioactivity from Misenite |
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Misenite Classification |
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| Dana Class: |
28.01.02.01 (28)Anhydrous Acid and Sulfates | ||
| (28.01)(Anhydrous, Acid) | |||
| (28.01.02)Dana Group | |||
| Strunz Class: |
07.AD.15 07 - SULFATES (SELENATES, TELLURATES) | ||
| 07.A - Sulfates (selenates, etc.) without Additional Anions, without H2O | |||
| 07.AD -With only large cations | |||
Other Misenite Information |
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| References: |
NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) | ||
| See Also: |
Links to other databases for Misenite : 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 Misenite using: Visit our Advertisers for Misenite : A Bijoux Google Search for MiseniteAdam's Minerals Google Search for Misenite Cape Minerals Google Search for Misenite Dakota Matrix Minerals Google Search for Misenite Excalibur Mineral Corp. Google Search for Misenite Exceptional Minerals Google Search for Misenite John Betts Fine Minerals Search for Misenite McDougall Minerals Google Search for Misenite Mineral News Website Link Rock and Mineral Shows Google Search for Misenite Weinrich Minerals, Inc. Google Search for Misenite Ask about Misenite here : Print or Cut-and-Paste your Misenite Specimen Label here :
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- barely detectable