Mineralogy Database

Chloroxiphite Mineral Data

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General Chloroxiphite Information

Help on Chemical  Formula: Chemical Formula: Pb3CuCl2(OH)2O2
Help on Composition: Composition: Molecular Weight = 822.06 gm
   Copper     7.73 %  Cu    9.68 % CuO
   Hydrogen   0.25 %  H     2.19 % H2O
   Lead      75.61 %  Pb   81.45 % PbO
   Chlorine   8.63 %  Cl    8.63 % Cl
               -   %   Cl   -1.95 % -O=Cl2   
   Oxygen     7.78 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Pb3CuCl2(OH)2O2
Help on Environment: Environment: Secondary mineral associated with lead- and copper-bearing pods in Mn-Fe deposits developed along fissures in dolomitic conglomerate and limestone.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1923
Help on Locality: Locality: Higher Pitts, Mendip Hills, Somersetshire, England. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named fom the Greek for green and blade or straight sword, for the typical crystal habit.
Help on Synonym: Synonym: ICSD 200123
  PDF 33-467

Chloroxiphite Image

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  Chloroxiphite   Mendipite   Crednerite

Comments: Green, opaque granular chloroxiphite with mendipite and black crednerite.
Location: Higher Pitts Farm, Priddy, Mendip Hills, Somerset, England. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

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  Mendipite   Crednerite   Chloroxiphite

Comments: Radiating compact with clear to white crystalline mendipite with black crednerite and green chloroxiphite.
Location: Mendip Hills, Somerset, England. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Chloroxiphite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.8187:1:1.1639
Help on Cell Dimensions: Cell Dimensions: a = 10.458, b = 5.75, c = 6.693, Z = 2; beta = 97.79° V = 398.76 Den(Calc)= 6.85
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 21/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.872(1), 2.829(0.78), 10.361(0.69),

Physical Properties of Chloroxiphite

Help on Cleavage: Cleavage: {001} Perfect, {010} Distinct
Help on Color: Color: Dull olive green, Pistachio green.
Help on Density: Density: 6.76
Help on Diaphaneity: Diaphaneity: Transparent to translucent
Help on Fracture: Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Habit: Habit: Tabular - Form dimensions are thin in one direction.
Help on Hardness: Hardness: 2.5 - Finger Nail
Help on Luster: Luster: Adamantine - Resinous
Help on Streak: Streak: light yellow green

Optical Properties of Chloroxiphite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.128 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.114 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1776,KPDmeas= 0.18,KC= 0.1595
Ncalc = 2.08 - 2.09
Help on Optical Data: Optical Data: Biaxial (-), a=2.16, b=2.24, g=2.25, bire=0.0900, 2V(Calc)=36, 2V(Meas)=70.
Help on Pleochroism (x): Pleochroism (x): bright emerald green.
Help on Pleochroism (y): Pleochroism (y): yellowish brown.

Calculated Properties of Chloroxiphite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=5.72 gm/cc
note: Specific Gravity of Chloroxiphite =6.85 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.16
Boson Index = 0.84
Help on Photoelectric: Photoelectric: PEChloroxiphite =1,395.54 barns/electron
U=PEChloroxiphite x rElectron Density=7,977.23 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Chloroxiphite is Not Radioactive

Chloroxiphite Classification

Help on  Dana Class: Dana Class: (10)Oxyhalides and Hydroxyhalides
  (10.06)where Am Bn (O,OH)p Xq
  (10.06.04)Dana Group Chloroxiphite Pb3CuCl2(OH)2O2 P 21/m 2/m
Help on  Strunz Class: Strunz Class: 03.DB.30 03 - HALIDES
  03.D - Oxyhalides, Hydroxyhalides and Related Double Halides
  03.DB -With Pb, Cu, etc.
03.DB.30 Chloroxiphite Pb3CuCl2(OH)2O2 P 21/m 2/m

Other Chloroxiphite Information

Help on References: References: NAME( Ford32) 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 Chloroxiphite :
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: 03.DB.30





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