Paradamite Mineral Data + 
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- 41.6.7.1 Tarbuttite Zn2(PO4)(OH) P1 1
- 41.6.7.2 Paradamite Zn2(AsO4)(OH) P1 1
- VII/B.06-10 Libethenite Cu2(PO4)(OH) Pnnm 2/m 2/m 2/m
- VII/B.06-20 Olivenite Cu2AsO4(OH) P 21/n 2/m
- VII/B.06-30 Adamite Zn2(AsO4)(OH) Pnnm 2/m 2/m 2/m
- VII/B.06-40 Eveite Mn2(AsO4)(OH) Pnnm 2/m 2/m 2/m
- VII/B.06-50 Tarbuttite Zn2(PO4)(OH) P1 1
- VII/B.06-60 Paradamite Zn2(AsO4)(OH) P1 1
General Paradamite Information |
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 Chemical Formula: |
Zn2(AsO4)(OH) | ||
| Composition: |
Molecular Weight = 286.71 gm | ||
| Zinc 45.61 % Zn 56.78 % ZnO | |||
| Arsenic 26.13 % As 40.08 % As2O5 | |||
| Hydrogen 0.35 % H 3.14 % H2O | |||
| Oxygen 27.90 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
Zn2(AsO4)(OH) | ||
| Environment: |
Secondary mineral in the oxidized sone of a Ag-Pb-Zn mine. | ||
| IMA Status: |
Valid Species (Pre-IMA) 1956 | ||
| Locality: |
Ojuela mine, Mapimi, Durango, Mexico Link to MinDat.org Location Data. | ||
| Name Origin: |
Named as the dimorph of adamite. | ||
Paradamite Image | |||
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Images:
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Paradamite Crystallography |
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| Axial Ratios: |
a:b:c =0.8687:1:0.8416 | ||
| Cell Dimensions: |
a = 5.83, b = 6.711, c = 5.648, Z = 2; alpha = 104.73°, beta = 92.26°, gamma = 76.81° V = 207.92 Den(Calc)= 4.58 | ||
| Crystal System: |
Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1 | ||
| X Ray Diffraction: |
By Intensity(I/Io): 3.698(1), 2.838(0.99), 2.994(0.96), | ||
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Crystal Structure:
Mouse |
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Physical Properties of Paradamite |
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| Cleavage: |
[010] Perfect | ||
| Color: |
Light yellow. | ||
| Density: |
4.55 | ||
| Diaphaniety: |
Transparent | ||
| Hardness: |
3.5 - Copper Penny | ||
| Luster: |
Vitreous (Glassy) | ||
| Streak: |
white | ||
Optical Properties of Paradamite |
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| Gladstone-Dale: |
CI meas= -0.009 (Superior) - where the CI = (1-KPDmeas/KC) CI calc= -0.002 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1657,KPDmeas= 0.1668,KC= 0.1653 |
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| Optical Data: |
Biaxial (-), a=1.726, b=1.771, g=1.78, bire=0.0540, 2V(Calc)=46, 2V(Meas)=50. | ||
Calculated Properties of Paradamite |
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| Electron Density: |
relectron=4.28 gm/cc |
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| Fermion Index |
Fermion Index = 0.01883 Boson Index = 0.98117 |
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| Photoelectric: |
PEParadamite = 41.42 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Paradamite is Not Radioactive |
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Paradamite Classification |
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| Dana Class: |
41.6.7.2 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen | ||
| (41.6)where (A)2 (XO4) Zq | |||
| (41.6.7)Dana Group | |||
| Strunz Class: |
VII/B.06-60 VII - Phosphates, Arsenates and Vanadates | ||
| VII/B - Waterfree phosphates with unfamiliar anions F, Cl, O,OH, cations of medium size: Mg, Mn, Fe, Cu, Zn, Pseudomalachite group and related compounds | |||
| VII/B.06 - Adamite group, Libethenite - Paradamite | |||
Other Paradamite 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 Paradamite : 1 -Am. Min. Crystal Structure Database 2 - Amethyst Galleries' Mineral Gallery 3 -Athena 4 - EUROmin Project 5 -Google Images 6 -Google Scholar 7 -Handbook of Mineralogy (UofA) 8 -MinDAT 9 -MinMax(Deutsch) 10 -MinMax(English) 11 - Mineral and Gemstone Kingdom 12 -Mineralienatlas (Deutsch) 13 -QUT Mineral Atlas 14 - WWW-MINCRYST 15 -École des Mines de Paris Search for Paradamite using: Visit our Advertisers for Paradamite : Translate Paradamite Mineral Data : Ask about Paradamite here : Print or Cut-and-Paste your Paradamite Specimen Label here :
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