Ashoverite Mineral Data + 
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- 6.2.11.1 Ashoverite Zn(OH)2 I 41/amd 4/m 2/m 2/m
- IV/F.03-10 Brucite Mg(OH)2 P 3m1 3 2/m
- IV/F.03-20 Amakinite (Fe,Mg)(OH)2 P 3m1 3 2/m
- IV/F.03-30 Pyrochroite Mn(OH)2 P 3m1 3 2/m
- IV/F.03-40 Theophrastite Ni(OH)2 P 3m1 3 2/m
- IV/F.03-50 Paraotwayite Ni(OH)2-x(SO4,CO3)0.5xx=.5 Pm m
- IV/F.03-60 Sweetite Zn(OH)2 P 41212,P 43212 4 2 2
- IV/F.03-70 Ashoverite Zn(OH)2 I 41/amd 4/m 2/m 2/m
- IV/F.03-80 Wulfingite Zn(OH)2 P 212121 2 2 2
- IV/F.03-90 Spertiniite Cu(OH)2 C mc21 mm2
- IV/F.03-100 Portlandite Ca(OH)2 P 3m1 3 2/m
General Ashoverite Information |
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 Chemical Formula: |
Zn(OH)2 | ||
| Composition: |
Molecular Weight = 99.40 gm | ||
| Zinc 65.78 % Zn 81.88 % ZnO | |||
| Hydrogen 2.03 % H 18.12 % H2O | |||
| Oxygen 32.19 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
Zn(OH)2 | ||
| Environment: |
In a vein in a limestone quarry, on fluorite associated with the polymorphs, sweetite and wulfingite. | ||
| IMA Status: |
Approved IMA 1988 | ||
| Locality: |
Milltown, near Ashover, Derbyshire, England. Link to MinDat.org Location Data. | ||
| Name Origin: |
Named for the locality. | ||
Search for Ashoverite Images | |||
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Images:
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Ashoverite Crystallography |
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| Axial Ratios: |
a:c = 1:4.88791 | ||
| Cell Dimensions: |
a = 6.825, c = 33.36, Z = 32; V = 1,553.93 Den(Calc)= 3.40 | ||
| Crystal System: |
Tetragonal - Ditetragonal DipyramidalH-M Symbol (4/m 2/m 2/m) Space Group: I 41/amd | ||
| X Ray Diffraction: |
By Intensity(I/Io): 2.902(1), 1.819(0.33), 1.702(0.21), | ||
Physical Properties of Ashoverite |
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| Cleavage: |
[001] Perfect | ||
| Color: |
Colorless, White. | ||
| Density: |
3.3 | ||
| Diaphaniety: |
Translucent | ||
| Habit: |
Platy - Sheet forms (e.g. micas). | ||
| Luminescence: |
Fluorescent, Short UV=bluish white. | ||
| Luster: |
Vitreous - Dull | ||
| Streak: |
white | ||
Optical Properties of Ashoverite |
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| Gladstone-Dale: |
CI meas= -0.006 (Superior) - where the CI = (1-KPDmeas/KC) CI calc= 0.024 (Excellent) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1865,KPDmeas= 0.1921,KC= 0.191 |
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| Optical Data: |
Uniaxial (+), w=1.629, e=1.639, bire=0.0100. | ||
Calculated Properties of Ashoverite |
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| Electron Density: |
relectron=3.19 gm/cc |
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| Fermion Index |
Fermion Index = 0.02712 Boson Index = 0.97288 |
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| Photoelectric: |
PEAshoverite = 32.62 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Ashoverite is Not Radioactive |
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Ashoverite Classification |
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| Dana Class: |
6.2.11.1 (6)Hydroxides and Oxides Containing Hydroxyl | ||
| (6.2)where X++ (OH)2 | |||
| (6.2.11)Dana Group | |||
| Strunz Class: |
IV/F.03-70 IV - Oxides | ||
| IV/F - Hydroxides and oxidic hydrates, water-bearing oxides with layered structure | |||
| IV/F.03 - Brucite series | |||
Other Ashoverite Information |
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| References: |
NAME( Dana8) PHYS. PROP.(Am.Min.,Vol.75,p431,1990) OPTIC PROP.(Am.Min.,Vol.75,p431,1990) | ||
| See Also: |
Links to other databases for Ashoverite : 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 -École des Mines de Paris Search for Ashoverite using: Visit our Advertisers for Ashoverite : Translate Ashoverite Mineral Data : Ask about Ashoverite here : Print or Cut-and-Paste your Ashoverite Specimen Label here :
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