Rorisite Mineral Data

Advertisment

Dakota Matrix was founded in 1996 and has offered systematic and rare mineral specimens online since 1998.

John Betts - Fine Minerals, New York. Dealers of Fine Minerals and Natural Crystal Clusters since 1989. We buy rock collections, we buy gem collections, we buy mineral collections.

Weinrich Minerals, A Dealer in Fine Mineral Specimens - Since 1989. We buy collections and single high quality specimens.

General Rorisite Information

Chemical Formula:

(Ca,Mg)FCl

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

Empirical Formula:

Ca_0.75Mg_0.25FCl

Environment:

Carbonized wood in burnt coal dumps.

IMA Status:

Approved IMA 1990

Locality:

Kopeysk, Chelyabinsk coal basin, Southern Ural Mountains, Russia. Link to MinDat.org Location Data.

Name Origin:

Named from the Latin for dew, in allusion to the transparent drops that cover the mineral in moist air.

Name Pronunciation:

Rorisite

Synonym:

ICSD 1130

IMA1989-015

PDF 24-185

Rorisite Image

Images:

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

Axial Ratios:

a:c = 1:1.75064

Cell Dimensions:

a = 3.89, c = 6.81, Z = 2; V = 103.05 Den(Calc)= 2.92

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/I_o): 2.557(1), 6.81(0.45), 2.267(0.35),

Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
Help on Above

Liebich W , Nicollin D , Acta Crystallographica, Section B , 33 (1977) p.2790-2794, Refinement of the PbFCl types BaFI, BaFBr and CaFCl, Locality: synthetic

Physical Properties of Rorisite

Cleavage:

{???} Perfect

Color:

Colorless.

Density:

2.78

Diaphaneity:

Transparent

Hardness:

2 - Gypsum

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Rorisite

Optical Data:

Uniaxial (-), e=1.635, w=1.668, bire=0.0330.

Calculated Properties of Rorisite

Electron Density:

Bulk Density (Electron Density)=2.84 gm/cc
note: Specific Gravity of Rorisite =2.92 gm/cc.

Fermion Index:

Fermion Index = 0.0071556866
Boson Index = 0.9928443134

Photoelectric:

PE_Rorisite= 6.98 barns/electron
U=PE_Rorisite x rElectron Density= 19.80 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Rorisite is Not Radioactive

Rorisite Classification

Dana Class:

09.02.11.02 (09)Anhydrous and Hydrated Halides

(09.02)where A (X)2

(09.02.11)Matlockite Group

09.02.11.01 Matlockite PbFCl P 4/nmm 4/m 2/m 2/m

09.02.11.02 Rorisite (Ca,Mg)FCl P 4/nmm 4/m 2/m 2/m

09.02.11.03 Zhangpeishanite! BaFCl P 4/mmm 4mm

Strunz Class:

03.DC.25 03 - HALIDES

03.D - Oxyhalides, Hydroxyhalides and Related Double Halides

03.DC -With Pb (As,Sb,Bi), without Cu

03.DC.25 Bismoclite BiOCl P 4/nmm 4/m 2/m 2/m

03.DC.25 Daubreeite BiO(OH,Cl) P 4/nmm 4/m 2/m 2/m

03.DC.25 Matlockite PbFCl P 4/nmm 4/m 2/m 2/m

03.DC.25 Rorisite (Ca,Mg)FCl P 4/nmm 4/m 2/m 2/m

03.DC.25 Zavaritskite BiOF P 4/nmm 4/m 2/m 2/m

03.DC.25 Zhangpeishanite! BaFCl P 4/mmm 4mm

Other Rorisite Information

References:

NAME( AntBidBlaNic3) PHYS. PROP.(Am.Min.,Vol.76,p1731,1991) OPTIC PROP.(Am.Min.,Vol.76,p1731,1991)

See Also:

Links to other databases for Rorisite :
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
15 - WWW-MINCRYST

Search for Rorisite using:

[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Rorisite :

Dakota Matrix Minerals Google Search for Rorisite
Excalibur Mineral Corp. Google Search for Rorisite
John Betts Fine Minerals Search for Rorisite
McDougall Minerals Google Search for Rorisite
Mineral News Website Link
Mineral of the Month Club Google Search for Rorisite
Rock and Mineral Shows Google Search for Rorisite
Weinrich Minerals, Inc. Google Search for Rorisite

Ask about Rorisite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Español

Print or Cut-and-Paste your Rorisite Specimen Label here :

Rorisite

(Ca,Mg)FCl
Dana No: 09.02.11.02 Strunz No: 03.DC.25
Locality:

Notes: