Mineralogy Database

Paradocrasite Mineral Data

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General Paradocrasite Information

Help on Chemical  Formula: Chemical Formula: Sb2(Sb,As)2
Help on Composition: Composition: Molecular Weight = 463.59 gm
   Antimony  91.92 %  Sb
   Arsenic    8.08 %  As
            100.00 % 
Help on Empirical Formula: Empirical Formula: Sb3.5As0.5
Help on Environment: Environment: Associated with stibarsen.
Help on IMA Status: IMA Status: Approved IMA 1969
Help on Locality: Locality: Consuls mine at Broken Hill, New South Wales, Australia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named from the Greek for "unexpected alloy"
Help on Name Pronunciation: Name Pronunciation: Paradocrasite + Pronunciation Say PARADOCRASITE

Paradocrasite Image

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Comments: Metallic white columnar aggregates of paradocrasite.
Location: Moctezuma, Mun. de Moctezuma, Sonora. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Paradocrasite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.7382:1:1.062
Help on Cell Dimensions: Cell Dimensions: a = 7.252, b = 4.172, c = 4.431, Z = 1; beta = 123.13° V = 112.27 Den(Calc)= 6.86
Help on Crystal System: Crystal System: Monoclinic - Sphenoidal H-M Symbol (2) Space Group: C 2
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.05(1), 2.093(0.8), 2.219(0.8),

Physical Properties of Paradocrasite

Help on Cleavage: Cleavage: {???} Perfect
Help on Color: Color: Silver white.
Help on Density: Density: 6.52
Help on Diaphaneity: Diaphaneity: Opaque
Help on Fracture: Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Habit: Habit: Aggregates - Made of numerous individual crystals or clusters.
Help on Habit: Habit: Twinning Common - Crystals are usually twinned.
Help on Hardness: Hardness: 3.5 - Copper Penny
Help on Luster: Luster: Metallic
Help on Streak: Streak: metallic

Optical Properties of Paradocrasite

Help on RL Anisotrophism: RL Anisotrophism: Strong, in vivid pinks, pale orange, yellow, pale greenish blue and pale green..
Help on RL Color: RL Color: Bright white.
Help on RL Pleochroism: RL Pleochroism: Distinct, from yellowish white to slightly gray white in air, pale pink-white-gray in oil.

Calculated Properties of Paradocrasite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=5.77 gm/cc
note: Specific Gravity of Paradocrasite =6.86 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0
Boson Index = 1
Help on Photoelectric: Photoelectric: PEParadocrasite = 327.41 barns/electron
U=PEParadocrasite x rElectron Density=1,889.52 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Paradocrasite is Not Radioactive

Paradocrasite Classification

Help on  Dana Class: Dana Class: (01)Native Elements
  (01.03)with semi-metallic and non-metallic elements
  (01.03.03)Dana Group Paradocrasite Sb2(Sb,As)2 C 2 2
Help on  Strunz Class: Strunz Class: 01.CA.15 01 - ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)
  01.C - Metalloids and Nonmetals
  01.CA -Arsenic group elements
01.CA.15 Paradocrasite Sb2(Sb,As)2 C 2 2

Other Paradocrasite Information

Help on References: References: NAME( MinRec) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)
Help on See Also: See Also: Links to other databases for Paradocrasite :
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: 01.CA.15





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