General Painite Information Chemical Formula: |
CaZrB[Al9O18] |
Composition: |
Molecular Weight = 586.42 gm |
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Sodium 0.74 % Na 1.00 % Na2O |
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Calcium 5.26 % Ca 7.36 % CaO |
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Zirconium 0.62 % Zr 0.84 % ZrO2 |
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Titanium 1.55 % Ti 2.59 % TiO2 |
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Aluminum 40.49 % Al 76.50 % Al2O3 |
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Chromium 0.27 % Cr 0.35 % CrO |
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Boron 1.95 % B 6.29 % B2O3 |
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Oxygen 49.11 % O |
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______ ______ |
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100.00 % 94.94 % = TOTAL OXIDE |
Empirical Formula: |
Ca0.77Na0.19Al8.8Ti0.19Cr0.03Zr0.04B1.06O18 |
Environment: |
From gem concentrates and low-silica metamorphic rocks. |
IMA Status: |
Valid Species (Pre-IMA) 1957 |
Locality: |
Ohngaing, Mogok district, Sagaing, Myanmar. Link to MinDat.org Location Data. |
Name Origin: |
Named for A. C. D. Pain (-1971), British gem collector who first noticed the mineral. |
Name Pronunciation: |
Painite |
Synonym: |
ICSD 12136 |
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PDF 10-405 |
| | Painite Image
Images:
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Painite Crystallography Axial Ratios: |
a:c = 1:0.97019 |
Cell Dimensions: |
a = 8.724, c = 8.464, Z = 2; V = 557.88 Den(Calc)= 3.49 |
Crystal System: |
Hexagonal - DipyramidalH-M Symbol (6/m) Space Group: P 63/m |
X Ray Diffraction: |
By Intensity(I/Io): 2.52(1), 5.76(1), 3.7(0.8), |
Crystal Structure:
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Mouse
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| Physical Properties of Painite Color: |
Brownish, Brownish red, Orange red, Red. |
Density: |
4 - 4.03, Average = 4.01 |
Diaphaneity: |
Transparent |
Habit: |
Hexagonal - Six-sided crystal shape in cross-section or habit. |
Habit: |
Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline). |
Hardness: |
8 - Topaz |
Luster: |
Vitreous (Glassy) |
Streak: |
white |
| Optical Properties of Painite Dichroism (e): |
ruby red. |
Dichroism (w): |
pale brownish orange. |
Gladstone-Dale: |
CI meas= 0.011 (Superior) - where the CI = (1-KPDmeas/KC) |
CI calc= -0.138 (Poor) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2297,KPDmeas= 0.1997,KC= 0.2019 Ncalc = 1.7 - 1.81 Optical Data: |
Uniaxial (-), e=1.787-1.789, w=1.815-1.816, bire=0.0270-0.0280. |
| Calculated Properties of Painite Electron Density: |
Bulk Density (Electron Density)=3.94 gm/cc |
note: Specific Gravity of Painite =4.02 gm/cc. Fermion Index: |
Fermion Index = 0.0071519235 |
Boson Index = 0.9928480765 Photoelectric: |
PEPainite = 3.02 barns/electron |
U=PEPainite x rElectron Density= 11.89 barns/cc. Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Painite is Not Radioactive | Painite Classification Dana Class: |
07.05.02.01 (07)Multiple Oxides |
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(07.05)where A B X2 |
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(07.05.02)Dana Group |
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Strunz Class: |
06.AB.85 06 - BORATES |
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06.A - Monoborates |
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06.AB -BO3, with additional anions; 1(D) + OH, etc. |
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| Other Painite Information References: |
NAME( Dana8) PHYS. PROP.(Dana8, AmMin, v 89, p 610) OPTIC PROP.(Dana8) |
See Also: |
Links to other databases for Painite : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - CalTech Mineral Spectroscopy 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 Painite using: Visit our Advertisers for Painite : A Bijoux Google Search for PainiteAdam's Minerals Google Search for Painite Cape Minerals Google Search for Painite Dakota Matrix Minerals Google Search for Painite Excalibur Mineral Corp. Google Search for Painite Exceptional Minerals Google Search for Painite John Betts Fine Minerals Search for Painite McDougall Minerals Google Search for Painite Mineral News Website Link Rock and Mineral Shows Google Search for Painite Weinrich Minerals, Inc. Google Search for Painite Ask about Painite here : Print or Cut-and-Paste your Painite Specimen Label here :
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