Argentojarosite Mineral Data

[Mineral Forums] [Minerals for Sale] [About Us] [En Espanol] [Mineral Gallery]
Fabre Minerals - Europe's first Internet mineral dealer, on the web since 1996

General Argentojarosite Information

Chemical Formula:

AgFe+++3(SO4)2(OH)6

Composition:

Molecular Weight = 569.58 gm

Iron 29.41 % Fe 42.06 % Fe₂O₃

Silver 18.94 % Ag 20.34 % Ag₂O

Hydrogen 1.06 % H 9.49 % H₂O

Sulfur 11.26 % S 28.11 % SO₃

Oxygen 39.33 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

AgFe³⁺₃(SO₄)₂(OH)₆

Environment:

Secondary mineral derived from the oxidation of sulfide and silver-bearing sulfide minerals.

IMA Status:

Valid Species (Pre-IMA) 1923

Locality:

Tintic mine, East Tintic District, Utah County, Utah, USA. Link to MinDat.org Location Data.

Name Origin:

Named for the silver content and relationship to jarosite.

Name Pronunciation:

Argentojarosite + Pronunciation

Argentojarosite Image

Images:

Argentojarosite

Comments: Yellow crystalline massive argentojarosite.
Location: Eagle Mine, Juab County, Utah, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Argentojarosite Crystallography

Axial Ratios:

a:c = 1:2.25578

Cell Dimensions:

a = 7.35, c = 16.58, Z = 3; V = 775.69 Den(Calc)= 3.66

Crystal System:

Trigonal - Ditrigonal PyramidalH-M Symbol (3m) Space Group: R 3m

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

By Intensity(I/I_o): 3.06(1), 5.98(0.5), 3.68(0.3),

Physical Properties of Argentojarosite

Cleavage:

{???} Perfect

Color:

Brown, Yellow, Yellow brown.

Density:

3.66

Diaphaneity:

Transparent to Translucent

Habit:

Micaceous - Platy texture with "flexible" plates.

Hardness:

3.5-4.5 - Between Copper Penny and Fluorite-Apatite

Luminescence:

Non-fluorescent.

Luster:

Vitreous (Glassy)

Streak:

yellow

Optical Properties of Argentojarosite

Gladstone-Dale:

CI meas= 0.084 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= 0.084 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2277,KPDmeas= 0.2277,KC= 0.2487
Ncalc = 1.91

Optical Data:

Uniaxial (-), e=1.785, w=1.882, bire=0.0970.

Calculated Properties of Argentojarosite

Electron Density:

Bulk Density (Electron Density)=3.53 gm/cc
note: Specific Gravity of Argentojarosite =3.66 gm/cc.

Fermion Index:

Fermion Index = 0.0072707594
Boson Index = 0.9927292406

Photoelectric:

PE_{Argentojarosite}= 54.31 barns/electron
U=PE_{Argentojarosite} x rElectron Density= 191.93 barns/cc.

Radioactivity:

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

Argentojarosite Classification

Dana Class:

30.02.05.05 (30)Anhydrous Sulfates Containing Hydroxyl or Halogen

(30.02)where (A B)2 XO4 Zq

(30.02.05)Alunite Group (Jarosite Subgroup)

30.02.05.01 Jarosite KFe3(SO4)2(OH)6 R 3 3

30.02.05.02 Natrojarosite NaFe3(SO4)2(OH)6 R 3m 3m

30.02.05.03 Hydroniumjarosite (H3O)Fe3(SO4)2(OH)6 R 3m 3m

30.02.05.04 Ammoniojarosite (NH4)Fe3(SO4)2(OH)6 R 3m 3m

30.02.05.05 Argentojarosite AgFe3(SO4)2(OH)6 R 3m 3m

30.02.05.06 Plumbojarosite PbFe6(SO4)4(OH)12 R 3m 3 2/m

30.02.05.07 Beaverite PbCu(Fe,Al)2(SO4)2(OH)6 R 3m 3m

30.02.05.08 Dorallcharite (Tl,K)Fe3(SO4)2(OH)6 R 3m 3 2/m

Strunz Class:

07.BC.10 07 - SULFATES (SELENATES, TELLURATES)

07.B - Sulfates (selenates, etc.) with Additional Anions, without H2O

07.BC -With medium-sized and large cations

07.BC.10 Alunite KAl3(SO4)2(OH)6 R 3m, R 3m Trig

07.BC.10 Ammonioalunite (NH4)Al3(SO4)2(OH)6 R 3m 3 2/m

07.BC.10 Ammoniojarosite (NH4)Fe3(SO4)2(OH)6 R 3m 3m

07.BC.10 Beaverite PbCu(Fe,Al)2(SO4)2(OH)6 R 3m 3m

07.BC.10 Argentojarosite AgFe3(SO4)2(OH)6 R 3m 3m

07.BC.10 Huangite Ca0.5Al3(SO4)2(OH)6 R 3m 3 2/m

07.BC.10 Dorallcharite (Tl,K)Fe3(SO4)2(OH)6 R 3m 3 2/m

07.BC.10 Jarosite KFe3(SO4)2(OH)6 R 3 3

07.BC.10 Hydroniumjarosite (H3O)Fe3(SO4)2(OH)6 R 3m 3m

07.BC.10 Minamiite (Na,Ca,K)Al3(SO4)2(OH)6 R 3m 3 2/m

07.BC.10 Natrojarosite NaFe3(SO4)2(OH)6 R 3m 3m

07.BC.10 Natroalunite NaAl3(SO4)2(OH)6 R 3m 3 2/m

07.BC.10 Osarizawaite PbCuAl2(SO4)2(OH)6 R 3m 3m

07.BC.10 Plumbojarosite PbFe6(SO4)4(OH)12 R 3m 3 2/m

07.BC.10 Schlossmacherite (H3O,Ca)Al3(AsO4,SO4)2(OH)6 R 3m 3 2/m

07.BC.10 Walthierite Ba0.5Al3(SO4)2(OH)6 R 3m 3 2/m

Other Argentojarosite Information

References:

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

See Also:

Links to other databases for Argentojarosite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (MinSocAm)
8 - Handbook of Mineralogy (UofA)
9 - MinDAT
10 - MinMax(Deutsch)
11 - MinMax(English)
12 - Mineralienatlas (Deutsch)
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - WWW-MINCRYST

Search for Argentojarosite using:

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

Visit our Advertisers for Argentojarosite :

AA Mineral Specimens

B & L Fine Minerals

Crystalarium.com

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

Dakota Matrix

Desert Winds Gems and Minerals

John Betts Fine Minerals

Mason's Minerals

Mineral News

Mineral of the Month Club

Wrights Rock Shop

Translate Argentojarosite Mineral Data :

Ask about Argentojarosite 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 Argentojarosite Specimen Label here :

Argentojarosite

AgFe+++3(SO4)2(OH)6
Dana No: 30.02.05.05 Strunz No: 07.BC.10
Locality:

Notes: