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Adamite Mineral Data

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General Adamite Information

Help on Chemical  Formula: Chemical Formula: Zn2(AsO4)(OH)
Help on Composition: 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
Help on Empirical Formula: Empirical Formula: Zn2(AsO4)(OH)
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1866
Help on Locality: Locality: Chile, Atacama, Cha�arcillo Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after the French mineralogist Gilbert Joseph Adam (1795-1881).
Help on Name Pronunciation: Name Pronunciation: Adamite Say ADAMITE
Help on Synonym: Synonym: Cuproadamite - Cu-bearing adamite
  ICSD 34868
  PDF 39-1354
 

Adamite Image

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  Adamite

Comments: Sprays of adamite with intense color and well defined crystals which stand out from the matrix.
Location: Ojuela mine, Mapimi, Durango, Mexico. Scale: 5 x 5 cm.
© Fabre Minerals

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  Cryptomelane   Adamite

Comments: Black, rounded balls of cryptomelane and purple, transparent adamite.
Location: Ojuela mine, Mapimi, Druango, Mexico. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Adamite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.9744:1:0.7089
Help on Cell Dimensions: Cell Dimensions: a = 8.306, b = 8.524, c = 6.043, Z = 4; V = 427.85 Den(Calc)= 4.45
Help on Crystal System: Crystal System: Orthorhombic - Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: Pnnm
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.45(1), 2.97(0.9), 4.9(0.9),
Help on Forms: Forms:

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Drag2 - Resize

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I - Indicies
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F - Fit to Screen
M - Menu

Help on Above

Forms: ( 0 1 0) ( 1 1 0) ( 2 1 0) ( 1 0 1) ( 1 2 0)

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Physical Properties of Adamite

Help on Cleavage: Cleavage: {101} Good, {010} Poor
Help on Color: Color: Yellow, Green, Violet, Pink, Yellowish green.
Help on Density: Density: 4.3 - 4.5, Average = 4.4
Help on Diaphaneity: Diaphaneity: Subtransparent
Help on Fracture: Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Habit: Habit: Druse - Crystal growth in a cavity which results in numerous crystal tipped surfaces.
Help on Habit: Habit: Encrustations - Forms crust-like aggregates on matrix.
Help on Habit: Habit: Tabular - Form dimensions are thin in one direction.
Help on Hardness: Hardness: 3.5 - Copper Penny
Help on Luminescence: Luminescence: Fluorescent and phosphorescent, Short UV=yellow green, Long UV=yellow green.
Help on Luster: Luster: Vitreous - Resinous
Help on Streak: Streak: white
 

Optical Properties of Adamite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.02 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= -0.009 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1667,KPDmeas= 0.1686,KC= 0.1653
Ncalc = 1.71 - 1.74
Help on Optical Data: Optical Data: Biaxial (+/-), a=1.708-1.722, b=1.742-1.744, g=1.763-1.773, bire=0.0510-0.0550, 2V(Calc)=74-84, 2V(Meas)=88. Dispersion none.
 

Calculated Properties of Adamite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.16 gm/cc
note: Specific Gravity of Adamite =4.45 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEAdamite = 41.42 barns/electron
U=PEAdamite x rElectron Density= 172.31 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Adamite is Not Radioactive
 

Adamite Classification

Help on  Dana Class: Dana Class: 41.06.06.03 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen
  (41.06)where (A)2 (XO4) Zq
  (41.06.06)Olivenite Group
 
41.06.06.01 Olivenite Cu2AsO4(OH) P 21/n 2/m
 
41.06.06.02 Libethenite Cu2(PO4)(OH) Pnnm 2/m 2/m 2/m
 
41.06.06.03 Adamite Zn2(AsO4)(OH) Pnnm 2/m 2/m 2/m
 
41.06.06.04 Eveite Mn2(AsO4)(OH) Pnnm 2/m 2/m 2/m
 
41.06.06.05 Zincolibethenite! CuZn(PO4)OH Pnnm 2/m 2/m 2/m
 
41.06.06.06 Zincolivenite! CuZn(AsO4)(OH) Pnnm 2/m 2/m 2/m
Help on  Strunz Class: Strunz Class: 08.BB.30 08 - PHOSPHATES, ARSENATES, VANADATES
  08.B - Phosphates, etc. with Additional Anions, without H2O
  08.BB -With only medium-sized cations, (OH, etc.):RO4 � 1:1
 
08.BB.30 Eveite Mn2(AsO4)(OH) Pnnm 2/m 2/m 2/m
 
08.BB.30 Adamite Zn2(AsO4)(OH) Pnnm 2/m 2/m 2/m
 
08.BB.30 Libethenite Cu2(PO4)(OH) Pnnm 2/m 2/m 2/m
 
08.BB.30 Olivenite Cu2AsO4(OH) P 21/n 2/m
 
08.BB.30 Zincolibethenite! CuZn(PO4)OH Pnnm 2/m 2/m 2/m
 
08.BB.30 Zincolivenite! CuZn(AsO4)(OH) Pnnm 2/m 2/m 2/m
 

Other Adamite Information

Help on References: References: NAME( Sinkankas66) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990;Dana8) OPTIC PROP.(Sinkankas66)
Help on See Also: See Also: Links to other databases for Adamite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - Franklin Minerals(Dunn)
6 - GeoScienceWorld
7 - Glendale Community College
8 - Google Images
9 - Google Scholar
10 - Handbook of Mineralogy (MinSocAm)
11 - Handbook of Mineralogy (UofA)
12 - HyperPhysics
13 - MinDAT
14 - Mineral and Gemstone Kingdom
15 - Mineralienatlas (Deutsch)
16 - Online Mineral Museum
17 - QUT Mineral Atlas
18 - Ruff.Info
19 - WWW-MINCRYST

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Print or Cut-and-Paste your Adamite Specimen Label here :

Adamite

Zn2(AsO4)(OH)
Dana No: 41.06.06.03 Strunz No: 08.BB.30
Locality:

 

Notes:

 

 
   
 


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