Mineralogy Database

Skorpionite Mineral Data

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General Skorpionite Information

Help on Chemical  Formula: Chemical Formula: Ca3Zn2(PO4)2CO3(OH)2•H2O
Help on Composition: Composition: Molecular Weight = 552.09 gm
   Calcium     22.14 %  Ca   30.98 % CaO
   Zinc        23.21 %  Zn   28.89 % ZnO
   Phosphorus  11.16 %  P    25.58 % P2O5
   Hydrogen     0.73 %  H     6.56 % H2O
   Carbon       2.18 %  C     7.97 % CO2
   Oxygen      40.57 %  O
              ______        ______ 
              100.00 %       99.99 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca3.05Zn1.96(PO4)1.99(CO3)(OH)2.06•0.98(H2O)
Help on Environment: Environment: Secondary mineral in zinc mine. New structure type.
Help on IMA Status: IMA Status: Approved IMA 2005 (Dana # Added)
Help on Locality: Locality: Skorpion zinc deposit, Namibia Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after the locality.
Help on Synonym: Synonym: IMA2005-010

Skorpionite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =2.0434:1:0.7001
Help on Cell Dimensions: Cell Dimensions: a = 19.045, b = 9.32, c = 6.525, Z = 4; beta = 92.73° V = 1,156.87 Den(Calc)= 3.17
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/c
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.17(1), 2.788(0.67), 9.501(0.53),3.063(0.42), 5.32(0.3), 2.26(0.21), 2.582(0.21),

Physical Properties of Skorpionite

Help on Color: Color: White, Colorless.
Help on Density: Density: 3.15
Help on Diaphaneity: Diaphaneity: Transparent
Help on Habit: Habit: Acicular - Occurs as needle-like crystals.
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white

Optical Properties of Skorpionite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.011 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.004 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1975,KPDmeas= 0.1988,KC= 0.1966
Ncalc = 1.62
Help on Optical Data: Optical Data: Biaxial (-), a=1.5884, b=1.6445, g=1.6455, bire=0.0571

Calculated Properties of Skorpionite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.12 gm/cc
note: Specific Gravity of Skorpionite =3.17 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PESkorpionite = 14.61 barns/electron
U=PESkorpionite x rElectron Density= 45.58 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Skorpionite is Not Radioactive

Skorpionite Classification

Help on  Dana Class: Dana Class: (43)Compound Phosphates, etc.
  (43.05)(Hydrated Compound Anions With Hydroxyl or Halogen)
  (43.05.24)Dana Group Skorpionite! Ca3Zn2(PO4)2CO3(OH)2•H2O C 2/c 2/m
Help on  Strunz Class: Strunz Class: 08.DO.45 08 - PHOSPHATES, ARSENATES, VANADATES
  08.D - Phosphates, etc
  08.DO -With CO3, SO4, SiO4
08.DO.45 Skorpionite! Ca3Zn2(PO4)2CO3(OH)2•H2O C 2/c 2/m

Other Skorpionite Information

Help on References: References: NAME( AmMin, v94:403) PHYS. PROP.(AmMin, v94:403) OPTIC PROP.(AmMin, v94:403)
Help on See Also: See Also: Links to other databases for Skorpionite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

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Dana No: Strunz No: 08.DO.45





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