Phoenicochroite  Mineral Data

Phoenicochroite Mineral Data

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

Advertisment
Excalibur Mineral Corp. 1885 Seminole Trail - Suite 202  Charlottesville, VA 22901-1160 USA

General Phoenicochroite Information

Help on Chemical  Formula: Chemical Formula: Pb2(CrO4)O
Help on Composition: Composition: Molecular Weight = 546.39 gm
   Chromium   9.52 %  Cr   12.44 % CrO
   Lead      75.84 %  Pb   81.70 % PbO
   Oxygen    14.64 %  O
            ______        ______ 
            100.00 %       94.14 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Pb2CrO5
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1839
Help on Locality: Locality: Beresov, Ural Mountains, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: From the Greek for "deep red" and "color", in allusion to the color
Help on Name Pronunciation: Name Pronunciation: Phoenicochroite + Pronunciation Say PHOENICOCHROITE
Help on Synonym: Synonym: ICSD 34831
  PDF 29-769
 

Phoenicochroite Image

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

Phoenicochroite

Comments: Deep red phoenicochroite with crocoite in matrix.
Location: Callenberg North (no. 1) open cut, Callenberg, Glauchau, Saxony, Germany. Scale: Picture size 6.5 mm.
© Thomas Witzke / Abraxas-Verlag

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

Phoenicochroite   Hemihedrite

Comments: Yellow hemihedrite crystals to 1 mm within pockets of dark red phoenicochroite crystalline aggregates on matrix.
Location: Pack Rat claim, Maricopa Co., Arizona, USA. Scale: Picture size 1.5 cm.
© Tom Loomis / Dakota Matrix

Phoenicochroite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =2.4671:1:1.2576
Help on Cell Dimensions: Cell Dimensions: a = 14.001, b = 5.675, c = 7.137, Z = 4; beta = 115.217° V = 513.03 Den(Calc)= 7.07
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.979(1), 3.38(1), 6.43(0.5),
Click Here for Large Phoenicochroite Structure Window 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


Williams S A , McLean W J , Anthony J W , American Mineralogist , 55 (1970) p.784-792, A study of phoenicochroite - its structure and properties

 

Physical Properties of Phoenicochroite

Help on Cleavage: Cleavage: {201} Perfect
Help on Color: Color: Dark red, Lemon yellow.
Help on Density: Density: 7.01
Help on Diaphaneity: Diaphaneity: Translucent
Help on Habit: Habit: Massive - Uniformly indistinguishable crystals forming large masses.
Help on Habit: Habit: Tabular - Form dimensions are thin in one direction.
Help on Hardness: Hardness: 2.5 - Finger Nail
Help on Luster: Luster: Adamantine - Resinous
Help on Streak: Streak: yellow orange
 

Optical Properties of Phoenicochroite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.589 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.575 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2107,KPDmeas= 0.2126,KC= 0.1338
Ncalc = 1.94 - 1.95
Help on Optical Data: Optical Data: Biaxial (+), a=2.38, b=2.44, g=2.65, bire=0.2700, 2V(Calc)=62, 2V(Meas)=58. Dispersion r > v strong.
 

Calculated Properties of Phoenicochroite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=5.90 gm/cc
note: Specific Gravity of Phoenicochroite =7.07 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.17
Boson Index = 0.83
Help on Photoelectric: Photoelectric: PEPhoenicochroite =1,397.54 barns/electron
U=PEPhoenicochroite x rElectron Density=8,246.01 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Phoenicochroite is Not Radioactive
 

Phoenicochroite Classification

Help on  Dana Class: Dana Class: 35.01.02.01 (35)Anhydrous Chromates
  (35.01)where (A+)2 XO4
  (35.01.02)Dana Group
 
35.01.02.01 Phoenicochroite Pb2(CrO4)O C 2/m 2/m
Help on  Strunz Class: Strunz Class: 07.FB.05 07 - SULFATES (SELENATES, TELLURATES)
  07.F - Chromates
  07.FB -With additional O, V, S, Cl
 
07.FB.05 Phoenicochroite Pb2(CrO4)O C 2/m 2/m
 

Other Phoenicochroite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Phoenicochroite :
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 Phoenicochroite using:

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

Visit our Advertisers for Phoenicochroite :

A Bijoux Google Search for Phoenicochroite
Adam's Minerals Google Search for Phoenicochroite
Cape Minerals Google Search for Phoenicochroite
Dakota Matrix Minerals Google Search for Phoenicochroite
Excalibur Mineral Corp. Google Search for Phoenicochroite
Exceptional Minerals Google Search for Phoenicochroite
John Betts Fine Minerals Search for Phoenicochroite
McDougall Minerals Google Search for Phoenicochroite
Mineral News Website Link
Rock and Mineral Shows Google Search for Phoenicochroite
Weinrich Minerals, Inc. Google Search for Phoenicochroite

Ask about Phoenicochroite 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 Phoenicochroite Specimen Label here :

Phoenicochroite

Pb2(CrO4)O
Dana No: 35.01.02.01 Strunz No: 07.FB.05
Locality:

 

Notes: