Mineralogy Database

Tarbuttite Mineral Data

Search Webmineral :
  

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

General Tarbuttite Information

Help on Chemical Formula: Chemical Formula: Zn2(PO4)(OH)
Help on Composition: Composition: Molecular Weight = 242.76 gm
   Zinc        53.87 %  Zn   67.05 % ZnO
   Phosphorus  12.76 %  P    29.24 % P2O5
   Hydrogen     0.42 %  H     3.71 % H2O
   Oxygen      32.95 %  O
              ______        ______ 
              100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Zn2(PO4)(OH)
Help on Environment: Environment: Secondary mineral in the oxidized portions of Zn-bearing ore zones.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1907
Help on Locality: Locality: Kabwe, Broken Hill mines, northwestern Zambia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Percy Coventry Tarbutt, director of the Broken Hill Explaration Co., Zambia.
Help on Name Pronunciation: Name Pronunciation: Tarbuttite + Pronunciation Say TARBUTTITE
Help on Synonym: Synonym: Salmoite
 

Tarbuttite Image

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

  Tarbuttite

Comments: Clear, prismatic crystal of tarbuttite on matrix.
Location: Broken Hill Mine, Kabwe, Central Zambia. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Tarbuttite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.8795:1:0.8583
Help on Cell Dimensions: Cell Dimensions: a = 5.657, b = 6.432, c = 5.521, Z = 2; alpha = 102.45°, beta = 87.6°, gamma = 102.567° V = 191.29 Den(Calc)= 4.21
Help on Crystal System: Crystal System: Triclinic - Pinacoidal H-M Symbol ( 1) Space Group: P1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.78(1), 3.7(0.9), 6.12(0.9),
Help on Forms: Forms:

Mouse
Dbl Clk - Start-Stop Rotation
RMB - Cycle Display Modes
Drag1 - Manipulate Crystal
Drag2 - Resize
Keyboard
S - Stereo
I - Indicies
<space> - Start-Stop Rotation
F - Fit to Screen
M - Menu
Help on Above

Forms: ( 3 4 7) ( 1 2 1) ( 1 2 1) ( 0 1 0) ( 1 1 0) ( 2 1 0) ( 1 1 0) ( 1 0 0) ( 0 0 1)

Warning: this java applet does not work in some browsers because of security restrictions.

 

Physical Properties of Tarbuttite

Help on Cleavage: Cleavage: {010} Perfect
Help on Color: Color: Brown, Colorless, Green, White, Light yellow.
Help on Density: Density: 4.14
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Fracture: Fracture: Brittle - Uneven - Very brittle fracture producing uneven fragments.
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Habit: Habit: Striated - Parallel lines on crystal surface or cleavage face.
Help on Habit: Habit: Wheat Sheaf - Bundle shaped aggregates resembling wheat sheafs after hand reaping wheat.
Help on Hardness: Hardness: 4 - Fluorite
Help on Luminescence: Luminescence: Non-Fluorescent.
Help on Luster: Luster: Vitreous - Pearly
Help on Streak: Streak: white
 

Optical Properties of Tarbuttite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.028 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.044 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1645,KPDmeas= 0.1673,KC= 0.1721
Ncalc = 1.71 - 1.72
Help on Optical Data: Optical Data: Biaxial (-), a=1.66, b=1.705, g=1.713, bire=0.0530, 2V(Calc)=44, 2V(Meas)=50. Dispersion strong.
Help on Pleochroism (x): Pleochroism (x): colorless.
Help on Pleochroism (y): Pleochroism (y): colorless.
 

Calculated Properties of Tarbuttite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.96 gm/cc
note: Specific Gravity of Tarbuttite =4.14 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.02
Boson Index = 0.98
Help on Photoelectric: Photoelectric: PETarbuttite = 27.58 barns/electron
U=PETarbuttite x rElectron Density= 109.11 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Tarbuttite is Not Radioactive
 

Tarbuttite Classification
Help on Dana Class: Dana Class: 41.06.07.01 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen
  (41.06)where (A)2 (XO4) Zq
  (41.06.07)Tarbuttite Group
 
41.06.07.01 Tarbuttite Zn2(PO4)(OH) P1 1
 
41.06.07.02 Paradamite Zn2(AsO4)(OH) P1 1
Help on Strunz Class: Strunz Class: 08.BB.35 08 - PHOSPHATES, ARSENATES, VANADATES
  08.B - Phosphates, etc. with Additional Anions, without H2O
  08.BB -With only medium-sized cations, (OH, etc.):RO4 � 1:1
 
08.BB.35 Paradamite Zn2(AsO4)(OH) P1 1
 
08.BB.35 Tarbuttite Zn2(PO4)(OH) P1 1
 

Other Tarbuttite Information
Help on See Also: See Also: Links to other databases for Tarbuttite :
1 - Am. Min. Crystal Structure Database
2 - Amethyst Galleries' Mineral Gallery
3 - Athena
4 - EUROmin Project
5 - Ecole des Mines de Paris
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
16 - WWW-MINCRYST

Search for Tarbuttite using:

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

Visit our Advertisers for Tarbuttite :

Ask about Tarbuttite 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 Tarbuttite Specimen Label here :

Tarbuttite

Zn2(PO4)(OH)
Dana No: 41.06.07.01 Strunz No: 08.BB.35
Locality:

 

Notes: