Mineralogy Database

Zapatalite Mineral Data

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General Zapatalite Information

Help on Chemical  Formula: Chemical Formula: Cu3Al4(PO4)3(OH)9•4(H2O)
Help on Composition: Composition: Molecular Weight = 808.61 gm
   Aluminum    13.35 %  Al   25.22 % Al2O3
   Copper      23.58 %  Cu   29.51 % CuO
   Phosphorus  11.49 %  P    26.33 % P2O5
   Hydrogen     2.12 %  H    18.94 % H2O
   Oxygen      49.47 %  O
              ______        ______ 
              100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Cu3Al4(PO4)3(OH)9•4(H2O)
Help on Environment: Environment: Replacement of libethenite and pseudomalachite.
Help on IMA Status: IMA Status: Approved IMA 1972
Help on Locality: Locality: Cerro Morita Naco, 27 km SW of Agua Prieta, Sonora, Mexico. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Emiliano Zapata (1879-1919), hero of the Mexican Revolution.
Help on Name Pronunciation: Name Pronunciation: Zapatalite + Pronunciation Say ZAPATALITE

Zapatalite Image

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Comments: Bright blue zapatalite coating on rock.
Location: near Battle Mountain, Lander County, Nevada, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Zapatalite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:0.75689
Help on Cell Dimensions: Cell Dimensions: a = 15.22, c = 11.52, Z = 6; V = 2,668.59 Den(Calc)= 3.02
Help on Crystal System: Crystal System: Tetragonal Space Group: Unk
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 7.62(1), 11.6(1), 6.82(0.7),

Physical Properties of Zapatalite

Help on Cleavage: Cleavage: {001} Good
Help on Color: Color: Light blue.
Help on Density: Density: 3.016
Help on Diaphaneity: Diaphaneity: Translucent
Help on Fracture: Fracture: Sectile - Curved shavings or scrapings produced by a knife blade, (e.g. graphite).
Help on Hardness: Hardness: 1.5 - Between Talc and Gypsum
Help on Streak: Streak: light blue

Optical Properties of Zapatalite

Help on Dichroism (e): Dichroism (e): weak blue.
Help on Dichroism (w): Dichroism (w): weak blue.
Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.012 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.013 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2121,KPDmeas= 0.2124,KC= 0.2149
Ncalc = 1.65
Help on Optical Data: Optical Data: Uniaxial (-), e=1.635, w=1.646, bire=0.0110.

Calculated Properties of Zapatalite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.99 gm/cc
note: Specific Gravity of Zapatalite =3.02 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0002406156
Boson Index = 0.9997593844
Help on Photoelectric: Photoelectric: PEZapatalite = 11.01 barns/electron
U=PEZapatalite x rElectron Density= 32.94 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Zapatalite is Not Radioactive

Zapatalite Classification

Help on  Dana Class: Dana Class: (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen
  (42.05)where (A)2 (XO4) Zq � x(H2O)
  (42.05.03)Dana Group Zapatalite Cu3Al4(PO4)3(OH)9•4(H2O) Unk Tetra
Help on  Strunz Class: Strunz Class: 08.DE.20 08 - PHOSPHATES, ARSENATES, VANADATES
  08.D - Phosphates, etc
  08.DE -With only medium-sized cations, (OH, etc.):RO4 = 3:1
08.DE.20 Zapatalite Cu3Al4(PO4)3(OH)9•4(H2O) Unk Tetra

Other Zapatalite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Zapatalite :
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

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Dana No: Strunz No: 08.DE.20





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