General Heyite Information Chemical Formula: |
Pb5Fe++2(VO4)2O4 |
Composition: |
Molecular Weight = 1,441.57 gm |
|
Vanadium 7.07 % V 12.62 % V2O5 |
|
Iron 7.75 % Fe 9.97 % FeO |
|
Lead 71.87 % Pb 77.42 % PbO |
|
Oxygen 13.32 % O |
|
______ ______ |
|
100.00 % 100.00 % = TOTAL OXIDE |
Empirical Formula: |
Pb5Fe2+2(VO4)2O4 |
Environment: |
Secondary mineral in the oxidized portions of a polymetallic sulfide deposit. |
IMA Status: |
Approved IMA 1973 |
Locality: |
Betty Jo claim, about 13 km southeast of Ely, Nevada district, White Pine Co., Nevada, USA. Link to MinDat.org Location Data. |
Name Origin: |
Max Hutchinson Hey (1904-1984), eminent British mineralogist and chemist, British Museum (Natural History), London, England. |
Name Pronunciation: |
Heyite |
| | Heyite Image
Images:
|
|
Heyite Crystallography Axial Ratios: |
a:b:c =1.4808:1:1.2853 |
Cell Dimensions: |
a = 8.91, b = 6.017, c = 7.734, Z = 1; beta = 111.88° V = 384.76 Den(Calc)= 6.22 |
Crystal System: |
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/m |
X Ray Diffraction: |
By Intensity(I/Io): 3.248(1), 2.97(0.69), 2.767(0.61), |
| Physical Properties of Heyite Cleavage: |
None |
Color: |
Yellow, Yellow orange. |
Density: |
6.3 |
Diaphaneity: |
Transparent |
Fracture: |
Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern. |
Hardness: |
4 - Fluorite |
Luster: |
Vitreous (Glassy) |
Streak: |
amber colored |
| Optical Properties of Heyite Gladstone-Dale: |
CI meas= -0.18 (Poor) - where the CI = (1-KPDmeas/KC) |
CI calc= -0.195 (Poor) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1967,KPDmeas= 0.1942,KC= 0.1646 Ncalc = 2.02 - 2.04 Optical Data: |
Biaxial (?), a=2.185, b=2.219, g=2.266, bire=0.0810, 2V(Calc)=84, 2V(Meas)=89. |
| Calculated Properties of Heyite Electron Density: |
Bulk Density (Electron Density)=5.28 gm/cc |
note: Specific Gravity of Heyite =6.30 gm/cc. Fermion Index: |
Fermion Index = 0.16 |
Boson Index = 0.84 Photoelectric: |
PEHeyite =1,320.75 barns/electron |
U=PEHeyite x rElectron Density=6,972.57 barns/cc. Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Heyite is Not Radioactive | Heyite Classification Dana Class: |
41.02.02.01 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen |
|
(41.02)where (A B)7 (XO4)2 Zq |
|
(41.02.02)Dana Group |
|
Strunz Class: |
08.BK.20 08 - PHOSPHATES, ARSENATES, VANADATES |
|
08.B - Phosphates, etc. with Additional Anions, without H2O |
|
08.BK -With medium-sized and large cations, (OH, etc.) |
|
| Other Heyite Information References: |
NAME( AntBidBlaNic4) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) |
See Also: |
Links to other databases for Heyite : |
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 Heyite using: Visit our Advertisers for Heyite : A Bijoux Google Search for HeyiteAdam's Minerals Google Search for Heyite Cape Minerals Google Search for Heyite Dakota Matrix Minerals Google Search for Heyite Excalibur Mineral Corp. Google Search for Heyite Exceptional Minerals Google Search for Heyite John Betts Fine Minerals Search for Heyite McDougall Minerals Google Search for Heyite Mineral News Website Link Rock and Mineral Shows Google Search for Heyite Weinrich Minerals, Inc. Google Search for Heyite Ask about Heyite here : Print or Cut-and-Paste your Heyite Specimen Label here :
| |
|
| |