Chlorargyrite Mineral Data

Chlorargyrite Mineral Data +

General Chlorargyrite Information

Chemical Formula:

AgCl

Composition:

Molecular Weight = 143.32 gm

Silver 75.26 % Ag 80.85 % Ag₂O

Chlorine 24.74 % Cl 24.74 % Cl

- % Cl -5.58 % -O=Cl₂

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

AgCl

Environment:

Oxidized portions of silver deposits.

IMA Status:

Valid Species (Pre-IMA) 1875

Locality:

Broken Hill district, New South Wales, Australia. Link to MinDat.org Location Data.

Name Origin:

Named after its chemical composition of chlorine (Greek, chloros = "pale green") and silver (Latin, argentum).

Synonym:

Cerargyrite

Embolite-Br

Horn Silver

ICSD 64734

PDF 31-1238

Chlorargyrite Image

Images:

Chlorargyrite

Comments: Butterscotch colored cubic crystals of chlorargyrite on malachite.
Location: Bisbee, Cochise County, Arizona, USA. Scale: Size Not Given.
© Lou Perloff / Photo Atlas of Minerals

Images:

Chlorargyrite

Comments: Dark (by exposure to light) octahedral crystals of chlorargyrite with brownish goethite in a vug.
Location: Broken Hill, NWS, Australia. Scale: Crystal size 3 mm.
© Dave Barthelmy

Chlorargyrite Crystallography

Cell Dimensions:

a = 5.556, Z = 4; V = 171.51 Den(Calc)= 5.55

Crystal System:

Isometric - HexoctahedralH-M Symbol (4/m 3 2/m) Space Group: F m3m

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 2.774(1), 1.962(0.5), 3.2(0.5),

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

Wyckoff R W G , Crystal Structures , 1 (1963) p.85-237, Second edition. Interscience Publishers, New York, New York, rocksalt structure

Physical Properties of Chlorargyrite

Cleavage:

None

Color:

Purplish gray, Green, White, Colorless.

Density:

5.55

Diaphaniety:

Transparent to translucent

Fracture:

Sectile - Curved shavings or scrapings produced by a knife blade, (e.g. graphite).

Habit:

Columnar - Forms columns

Habit:

Massive - Uniformly indistinguishable crystals forming large masses.

Hardness:

1-1.5 - Talc or a little harder

Luminescence:

Non-fluorescent.

Luster:

Adamantine - Resinous

Streak:

white

Optical Properties of Chlorargyrite

Gladstone-Dale:

CI meas= 0.099 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= 0.099 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1928,KPDmeas= 0.1928,KC= 0.214

Optical Data:

Isotropic, n=2.07.

Calculated Properties of Chlorargyrite

Electron Density:

r_electron=4.96 gm/cc
note: r_{Chlorargyrite}=5.55 gm/cc.

Fermion Index

Fermion Index = 0
Boson Index = 1

Photoelectric:

PE_{Chlorargyrite}= 193.83 barns/electron
U=PE_{Chlorargyrite} x r_electron= 960.78 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Chlorargyrite is Not Radioactive

Chlorargyrite Classification

Dana Class:

9.1.4.1 (9)Anhydrous and Hydrated Halides

(9.1)where A X

(9.1.4)Dana Group

9.1.4.0 Embolite* Ag(Br,Cl) F m3m 4/m 3 2/m

9.1.4.1 Chlorargyrite AgCl F m3m 4/m 3 2/m

9.1.4.2 Bromargyrite AgBr F m3m 4/m 3 2/m

Strunz Class:

III/A.02-50 III - Halogenides

III/A - Simple halogenides, without water Metal : Halogen = 1 : 1

III/A.02 - Halite series Griceite - Bromargyrite

III/A.02-05 Griceite LiF F m3m 4/m 3 2/m

III/A.02-10 Villiaumite NaF F m3m 4/m 3 2/m

III/A.02-20 Carobbiite KF F m3m 4/m 3 2/m

III/A.02-30 Halite NaCl F m3m 4/m 3 2/m

III/A.02-40 Sylvite KCl F m3m 4/m 3 2/m

III/A.02-50 Chlorargyrite AgCl F m3m 4/m 3 2/m

III/A.02-60 Bromargyrite AgBr F m3m 4/m 3 2/m

Other Chlorargyrite Information

References:

NAME( Emsley91) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

Search for Chlorargyrite using:

[ALTAVISTA] [AOL] [About.com] [All-The-Web] [HotBot] [Ixquick] [LookSmart] [MAMMA] [MSN.COM] [Netscape] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Chlorargyrite :
AA Mineral Specimens
A-Rocks Auction
Adams Minerals
B and L Minerals
Dakota Matrix
Dan Weinrich Fine Minerals
Dan Weinrich Auctions
e-Rocks Auctions
Excalibur Minerals
Exceptional Minerals
Fabre Minerals
Greenside Minerals
John Betts Fine Minerals
Masons Minerals
Mineral News
Mineral of the Month Club
MineralsWeb Fine Minerals
Minernet.it
Rockshop.cz Kalat Fine Minerals
T G Fine Minerals
Wrights Rock Shop

Translate Chlorargyrite Mineral Data :

Ask about Chlorargyrite 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 Chlorargyrite Specimen Label here :

Chlorargyrite

AgCl
Dana No: 9.1.4.1 Strunz No: III/A.02-50
Locality:

Notes: