Tocornalite Mineral Data (original) (raw)
General Tocornalite Information
Chemical Formula:
(Ag,Hg)I (?)
Composition:
Molecular Weight = 257.95 gm
Silver 31.36 % Ag 33.69 % Ag2O
Mercury 19.44 % Hg 20.22 % Hg2O
Iodine 49.20 % I 49.20 % I
______ ______
100.00 % 100.00 % = TOTAL OXIDE
Empirical Formula:
Ag0.75Hg0.25I
Environment:
Found with other halides of silver and mercury. A questionable species.
IMA Status:
Valid Species (Pre-IMA) 1867
Locality:
Chanarcillo, Atacama, Chile. Link to MinDat.org Location Data.
Name Origin:
Named in 1867 for S. F. Tocornal, rector of the University of Santiago, Chile.
Name Pronunciation:
Tocornalite + Pronunciation 
Tocornalite Image
Images:
 |
Tocornalite Comments: Pale yellow granular tocornalite in matrix. Location: Block 14 Opencut, Broken Hill, Yancowinna Co., New South Wales, Australia.Scale: See Image. © Rruff Database |
|---|
Tocornalite Crystallography
Crystal System:
HexagonalSpace Group: Hex ?
X Ray Diffraction:
By Intensity(I/Io): 2.644(1), 3.61(0.9), 3.76(0.9),
Physical Properties of Tocornalite
Color:
Yellow, Bright yellow, Gray green, Black.
Fracture:
Plastic - Deforms like soft, plastic materials.
Habit:
Massive - Granular - Common texture observed in granite and other igneous rock.
Luster:
Earthy (Dull)
Optical Properties of Tocornalite
Optical Data:
Calculated Properties of Tocornalite
Fermion Index:
Fermion Index = 0.05
Boson Index = 0.95
Photoelectric:
PETocornalite = 610.33 barns/electron
U=PETocornalite x rElectron Density= . barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Tocornalite is Not Radioactive
Tocornalite Classification
Dana Class:
09.01.06.01 (09)Anhydrous and Hydrated Halides
(09.01)where A X
(09.01.06)Dana Group
09.01.06.01 Tocornalite (Ag,Hg)I(?) Hex ? Hex
Strunz Class:
03.AA.10 03 - HALIDES
03.A - Simple Halides, Without H2O
03.AA -M:X = 1:1, 2:3, 3:5, etc.
03.AA.10 Iodargyrite AgI P 63mc 6mm
03.AA.10 Tocornalite (Ag,Hg)I(?) Hex ? Hex
Other Tocornalite Information
References:
NAME( Dana8) PHYS. PROP.(Dana8)
See Also:
Links to other databases for Tocornalite :
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
Search for Tocornalite using:
[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]
Visit our Advertisers for Tocornalite :
A Bijoux Google Search for Tocornalite
Adam's Minerals Google Search for Tocornalite
Cape Minerals Google Search for Tocornalite
Dakota Matrix Minerals Google Search for Tocornalite
Excalibur Mineral Corp. Google Search for Tocornalite
Exceptional Minerals Google Search for Tocornalite
John Betts Fine Minerals Search for Tocornalite
McDougall Minerals Google Search for Tocornalite
Mineral News Website Link
Rock and Mineral Shows Google Search for Tocornalite
Weinrich Minerals, Inc. Google Search for Tocornalite
Ask about Tocornalite 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 Espa�ol
Print or Cut-and-Paste your Tocornalite Specimen Label here :
Tocornalite
(Ag,Hg)I (?)
Dana No: 09.01.06.01 Strunz No: 03.AA.10
Locality:
Notes: