Keystoneite Mineral Data

Keystoneite Mineral Data
Search Webmineral :
   
Home Crystal jmol jPOWD Chem X Ray Dana Strunz Properties A to Z Images       News Help About



[About Us] [Products] [Fluorescent Mineals] [Contact Us]
UVTools is a supplier of affordable ultraviolet lamps and fluorescent minerals
Our customers include mineral dealers, gift shops, and museums worldwide
We provide an array of shortwave, midwave, and longwave lamps at the best price!


General Keystoneite Information

Help on Chemical Formula: Chemical Formula: Mg0.5[Ni++Fe++(TeO3)3]•4.5(H2O)
Help on Composition: Composition: Molecular Weight = 734.55 gm
   Magnesium   1.65 %  Mg    2.74 % MgO
   Iron        7.60 %  Fe    9.78 % FeO
   Nickel      7.99 %  Ni   10.17 % NiO
   Tellurium  52.11 %  Te   65.18 % TeO2
   Hydrogen    1.23 %  H    11.04 % H2O
   Oxygen     29.40 %  O
             ______        ______ 
             100.00 %       98.91 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Mg0.5NiFe2+(TeO3)3•4.5(H2O)
Help on Environment: Environment: Secondary mineral in telluride-bearing ores.
Help on IMA Status: IMA Status: Approved IMA 1988
Help on Locality: Locality: Keystone mine, Magnolia distict, Boulder County, Colorado, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality
Help on Name Pronunciation: Name Pronunciation: Keystoneite + Pronunciation Say KEYSTONEITE
 

Keystoneite Image

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

Keystoneite

Comments: Yellow, feathery keystoneite on quartz.
Location: Mcalpine Mine, Moccasin, Tuolumne Co., California, USA. Scale: Picture size 2 mm.
© Thomas Witzke / Abraxas-Verlag

Keystoneite Crystallography
Help on Axial Ratios: Axial Ratios: a:c = 1:0.8141
Help on Cell Dimensions: Cell Dimensions: a = 9.344, c = 7.607, Z = 2; V = 575.19 Den(Calc)= 4.24
Help on Crystal System: Crystal System: Hexagonal - DipyramidalH-M Symbol (6/m) Space Group: P 63/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.77(1), 8.12(0.9), 4.05(0.8),1.72(0.6), 1.498(0.5), 2.84(0.5), 2.95(0.5), 3.81(0.4),
 

Physical Properties of Keystoneite

Help on Cleavage: Cleavage: None
Help on Color: Color: Golden yellow, Orange yellow.
Help on Density: Density: 4.4
Help on Habit: Habit: Acicular - Occurs as needle-like crystals.
Help on Habit: Habit: Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite)
Help on Luster: Luster: Adamantine
 

Optical Properties of Keystoneite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.006 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.032 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.217,KPDmeas= 0.2091,KC= 0.2103
Ncalc = 1.89 - 1.93
Help on Optical Data: Optical Data: Uniaxial (+), w=1.99, e=1.85, bire=0.1400.
 

Calculated Properties of Keystoneite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.99 gm/cc
note: Specific Gravity of Keystoneite =4.40 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.04
Boson Index = 0.96
Help on Photoelectric: Photoelectric: PEKeystoneite = 182.30 barns/electron
U=PEKeystoneite x rElectron Density= 727.27 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Keystoneite is Not Radioactive
 

Keystoneite Classification
Help on Dana Class: Dana Class: 34.03.02.03 (34)Selenites - Tellurites - Sulfites
  (34.03)Dana Type
  (34.03.02)Zemannite Group
 
34.03.02.01 Zemannite Mg0.5[ZnFe(TeO3)3]•4.5(H2O) P 63/m 6/m
 
34.03.02.02 Kinichilite Mg0.5[MnFe(TeO3)3]•4.5(H2O) P 63/m 6/m
 
34.03.02.03 Keystoneite Mg0.5[NiFe(TeO3)3]•4.5(H2O) P 63/m 6/m
Help on Strunz Class: Strunz Class: 04.JM.05 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
  04.J - Arsenites, Antimonites, Bismuthites, Sulfites,
  04.JM -Tellurites without additional anions, with H2O
 
04.JM.05 Keystoneite Mg0.5[NiFe(TeO3)3]•4.5(H2O) P 63/m 6/m
 
04.JM.05 Kinichilite Mg0.5[MnFe(TeO3)3]•4.5(H2O) P 63/m 6/m
 
04.JM.05 Zemannite Mg0.5[ZnFe(TeO3)3]•4.5(H2O) P 63/m 6/m
 

Other Keystoneite Information
Help on References: References: NAME( Dana8) PHYS. PROP.(37th List of New Min.,Min. Mag.,1996) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Keystoneite :
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 Keystoneite using:

Google
 
Web webmineral.com
[ALTAVISTA] [AOL] [bing] [GeoScienceWorld] [HotBot] [Ixquick] [MAMMA] [MSN.COM] [Netscape] [Scirus] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Keystoneite :

B & L Fine Minerals

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

Dakota Matrix

Excalibur Minerals

Exceptional Minerals

Fabre Minerals

John Betts Fine Minerals

Lapis Mineral Journal

Mineral News

UV Tools

Wrights Rock Shop

Translate Keystoneite Mineral Data :

Ask about Keystoneite 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 Espaņol

Print or Cut-and-Paste your Keystoneite Specimen Label here :

Keystoneite

Mg0.5[Ni++Fe++(TeO3)3]•4.5(H2O)
Dana No: 34.03.02.03 Strunz No: 04.JM.05
Locality:

 

Notes: