Rorisite Mineral Data + Say RORISITE


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General Rorisite Information

Help on Chemical  Formula: Chemical Formula: (Ca,Mg)FCl
Help on Composition: Composition: Molecular Weight = 90.59 gm
   Calcium    33.18 %  Ca   46.43 % CaO
   Magnesium   6.71 %  Mg   11.12 % MgO
   Chlorine   39.14 %  Cl   39.14 % Cl
                -   %  Cl   -8.83 % -O=Cl2
   Fluorine   20.97 %  F    20.97 % F
                -   %  F    -8.83 % -O=F2
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca0.75Mg0.25FCl
Help on IMA Status: IMA Status: Approved IMA 1990
Help on Locality: Locality: Link to MinDat.org Location Data.
Help on Synonym: Synonym: ICSD 1130
  IMA1989-015
  PDF 24-185
 

Rorisite Image

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Rorisite

Comments: Colorless to white tabular crystals of Rorisite. Rorisite is extremely hygroscopic and must be stored in closed vials. The picture was made through the vial.
Location: Kopeisk, Chelyabinsk Oblast', Urals Region, Russia. Scale: Picture size 2 mm.
© Thomas Witzke / Abraxas-Verlag

Rorisite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:1.75064
Help on Cell Dimensions: Cell Dimensions: a = 3.89, c = 6.81, Z = 2; V = 103.05 Den(Calc)= 2.92
Help on Crystal System: Crystal System: Tetragonal - Ditetragonal DipyramidalH-M Symbol (4/m 2/m 2/m) Space Group: P 4/nmm
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.557(1), 6.81(0.45), 2.267(0.35),
 

Physical Properties of Rorisite

Help on Cleavage: Cleavage: [???] Perfect
Help on Color: Color: Colorless.
Help on Density: Density: 2.78
Help on Diaphaniety: Diaphaniety: Transparent
Help on Hardness: Hardness: 2 - Gypsum
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Rorisite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.075 (Fair) - where the CI = (1-KPDmeas/KC)
CI calc= 0.119 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2231,KPDmeas= 0.2344,KC= 0.2533
Help on Optical Data: Optical Data: Uniaxial (-), e=1.635, w=1.668, bire=0.0330.
 

Calculated Properties of Rorisite

Help on Electron Density: Electron Density:

relectron=2.70 gm/cc
note: rRorisite =2.78 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.00715
Boson Index = 0.99285
Help on Photoelectric: Photoelectric:

PERorisite = 6.98 barns/electron
U=PERorisite x relectron= 18.86 barns/cc.

Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Rorisite is Not Radioactive

 

Rorisite Classification

Help on  Dana Class: Dana Class: 9.2.11.2 (9)Anhydrous and Hydrated Halides
  (9.2)where A (X)2
  (9.2.11)Dana Group
 
9.2.11.1 Matlockite PbFCl P 4/nmm 4/m 2/m 2/m
 
9.2.11.2 Rorisite (Ca,Mg)FCl P 4/nmm 4/m 2/m 2/m
Help on  Strunz Class: Strunz Class: III/D.10-65 III - Halogenides
  III/D - Oxi-halogenides with Pb - Bi - Sb and related compounds
  III/D.10 - Cotunnite - Matlockite series
 
III/D.10-10 Fiedlerite Pb3Cl4F(OH)2 P1 1
 
III/D.10-20 Paralaurionite PbCl(OH) C 2/m 2/m
 
III/D.10-30 Laurionite PbCl(OH) Pnam 2/m 2/m 2/m
 
III/D.10-40 Cotunnite PbCl2 Pnam 2/m 2/m 2/m
 
III/D.10-50 Pseudocotunnite K2PbCl4(?) P nma 2/m 2/m 2/m
 
III/D.10-60 Matlockite PbFCl P 4/nmm 4/m 2/m 2/m
 
III/D.10-65 Rorisite (Ca,Mg)FCl P 4/nmm 4/m 2/m 2/m
 
III/D.10-70 Zavaritskite BiOF P 4/nmm 4/m 2/m 2/m
 
III/D.10-80 Bismoclite BiOCl P 4/nmm 4/m 2/m 2/m
 
III/D.10-90 Daubreeite BiO(OH,Cl) P 4/nmm 4/m 2/m 2/m
 
III/D.10-140 Symesite! Pb10(SO4)O7Cl4·(H2O) B1 1
 

Other Rorisite Information

Help on References: References: PHYS. PROP.(Am.Min.,Vol.76,p1731,1991) OPTIC PROP.(Am.Min.,Vol.76,p1731,1991)
Help on See Also: See Also: Links to other databases for Rorisite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 - WWW-MINCRYST 13 -École des Mines de Paris

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Rorisite

(Ca,Mg)FCl
Dana No: 9.2.11.2 Strunz No: III/D.10-65
Locality:

 

Notes:

 

 
   
 
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