Mineralogy Database

Torreyite Mineral Data

Search Webmineral :
  
Advertisment

General Torreyite Information

Help on Chemical  Formula: Chemical Formula: (Mg,Mn)9Zn4(SO4)2(OH)22•8(H2O)
Help on Composition: Composition: Molecular Weight = 1,282.62 gm
   Magnesium  11.37 %  Mg   18.85 % MgO
   Manganese  12.85 %  Mn   16.59 % MnO
   Zinc       20.39 %  Zn   25.38 % ZnO
   Hydrogen    2.99 %  H    26.69 % H2O
   Sulfur      5.00 %  S    12.48 % SO3
   Oxygen     47.40 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Mg6Mn2+3Zn4(SO4)2(OH)22•8(H2O)
Help on Environment: Environment: Veinlets cutting calcite-franklinite-willemite ore in a metamorphosed stratiform zinc orebody.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1949
Help on Locality: Locality: Sterling Hill, Ogdensburg, Sussex Co., New Jersey, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for John Torrey (1796-1873), American naturalist who early studied Franklin, New Jersey, USA minerals.
Help on Name Pronunciation: Name Pronunciation: Torreyite + Pronunciation Say TORREYITE
 

Torreyite Image

Click Here for Larger   Image in a New Browser Window Images:
Click Here for Larger   Image

  Torreyite

Comments: Whitish translucent granular torreyite.
Location: Sterling Mine, Ogdensburg, Sussex County, New Jersey, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Torreyite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.7742:1:1.1428
Help on Cell Dimensions: Cell Dimensions: a = 16.486, b = 9.292, c = 10.619, Z = 2; beta = 95.42° V = 1,619.43 Den(Calc)= 2.63
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 21/a
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 13.06(1), 5.35(0.9), 3.85(0.8),
 

Physical Properties of Torreyite

Help on Cleavage: Cleavage: {010} Good
Help on Color: Color: Bluish white.
Help on Density: Density: 2.665
Help on Diaphaneity: Diaphaneity: Translucent
Help on Hardness: Hardness: 3 - Calcite
Help on Luster: Luster: Vitreous - Pearly
Help on Streak: Streak: white
 

Optical Properties of Torreyite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.026 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.013 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2204,KPDmeas= 0.2175,KC= 0.2233
Ncalc = 1.59 - 1.6
Help on Optical Data: Optical Data: Biaxial (-), a=1.57, b=1.584, g=1.585, bire=0.0150, 2V(Calc)=28, 2V(Meas)=40.
 

Calculated Properties of Torreyite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.63 gm/cc
note: Specific Gravity of Torreyite =2.63 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.02
Boson Index = 0.98
Help on Photoelectric: Photoelectric: PETorreyite = 13.57 barns/electron
U=PETorreyite x rElectron Density= 35.69 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Torreyite is Not Radioactive
 

Torreyite Classification

Help on  Dana Class: Dana Class: 31.01.04.01 (31)Hydrated Sulfates Containing Hydroxyl or Halogen
  (31.01)where (A+ B++)m (XO4)p Zq�x(H2O), where m:p>6:1
  (31.01.04)Dana Group
 
31.01.04.01 Torreyite (Mg,Mn)9Zn4(SO4)2(OH)22•8(H2O) P 21/a 2/m
 
31.01.04.02 Lawsonbauerite (Mn,Mg)9Zn4(SO4)2(OH)22•8(H2O) P 21/c 2/m
Help on  Strunz Class: Strunz Class: 07.DD.40 07 - SULFATES (SELENATES, TELLURATES)
  07.D - Sulfates (selenates, etc.) with additional anions, with H2O
  07.DD -With only medium-sized cations; sheets of edge-sharing octahedra
 
07.DD.40 Lawsonbauerite (Mn,Mg)9Zn4(SO4)2(OH)22•8(H2O) P 21/c 2/m
 
07.DD.40 Torreyite (Mg,Mn)9Zn4(SO4)2(OH)22•8(H2O) P 21/a 2/m
 

Other Torreyite Information

Help on References: References: NAME( AntBidBlaNic5) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Torreyite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - Franklin Minerals(Dunn)
6 - GeoScienceWorld
7 - Google Images
8 - Google Scholar
9 - Handbook of Mineralogy (MinSocAm)
10 - Handbook of Mineralogy (UofA)
11 - MinDAT
12 - Mineralienatlas (Deutsch)
13 - Online Mineral Museum
14 - QUT Mineral Atlas
15 - Ruff.Info

Search for Torreyite using:

Google
 
Web webmineral.com
[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Torreyite :

Ask about Torreyite 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 Torreyite Specimen Label here :

Torreyite

(Mg,Mn)9Zn4(SO4)2(OH)22•8(H2O)
Dana No: 31.01.04.01 Strunz No: 07.DD.40
Locality:

 

Notes:

 

 
   
 


Dakota Matrix
Excalibur Minerals
Exceptional Minerals
Hudson Insitute
John Betts Fine Minerals
Mc Dougall Minerals
Mineral News
Rock and Mineral Shows
Weinrich Minerals, Inc.