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Sapphirine Mineral Data + |
General Sapphirine Information |
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| (Mg,Al)8(Al,Si)6O20 | |||
| Molecular Weight = 683.33 gm | |||
| Magnesium 21.34 % Mg 35.39 % MgO | |||
| Aluminum 25.67 % Al 48.49 % Al2O3 | |||
| Silicon 6.17 % Si 13.19 % SiO2 | |||
| Oxygen 46.83 % O | |||
| ______ ______ | |||
| 100.00 % 97.07 % = TOTAL OXIDE | |||
| Mg6Al6.5Si1.5O20 | |||
| Magmatic and metamorphic rocks. | |||
| Valid Species (Pre-IMA) 1819 | |||
| St. Urbain, Charlevoix Co., Quebec, Canada. Link to MinDat.org Location Data. | |||
| Named after its blue color. | |||
Sapphirine Image | |||
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Sapphirine Crystallography |
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| a:b:c =0.9642:1:0.8336 | |||
| a = 9.97, b = 10.34, c = 8.62, Z = 2; alpha = 107.4°, beta = 95.2°, gamma = 123.8° V = 701.75 Den(Calc)= 3.23 | |||
| Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1 | |||
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Mouse |
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Physical Properties of Sapphirine |
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| [010] Perfect | |||
| Blue, Bluish gray, Greenish gray, Green. | |||
| 3.42 - 3.48, Average = 3.45 | |||
| Transparent | |||
| Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern. | |||
| Granular - Generally occurs as anhedral to subhedral crystals in matrix. | |||
| Tabular - Form dimensions are thin in one direction. | |||
| 7.5 - Garnet | |||
| Non-fluorescent. | |||
| Vitreous (Glassy) | |||
| Nonmagnetic | |||
| white | |||
Optical Properties of Sapphirine |
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| CI meas= -0.047 (Good) - where the CI = (1-KPDmeas/KC) CI calc= -0.118 (Poor) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2221,KPDmeas= 0.2079,KC= 0.1986 |
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| Biaxial (-), a=1.701-1.729, b=1.703-1.732, g=1.705-1.734, bire=0.0040-0.0050, 2V(Calc)=78-88, 2V(Meas)=51-69. Dispersion r < v. | |||
| greenish blue, blue, or dark blue. | |||
| deep blue, yellowish green, or green. | |||
Calculated Properties of Sapphirine |
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relectron=3.41 gm/cc |
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| Fermion Index = 0.02444 Boson Index = 0.97556 |
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PESapphirine = 1.47 barns/electron |
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| GRapi = 0 (Gamma Ray American Petroleum Institute Units) Sapphirine is Not Radioactive |
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Sapphirine Classification |
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| 69.2.1b.1 (69)Inosilicate Chains with Side Branches or Loops | |||
| (69.2)with P>2 | |||
| (69.2.1b)Aenigmatite and related species (Sapphirine subgroup) | |||
| VIII/F.15-10 VIII - Silicates | |||
| VIII/F - Inosilicates (chain and band) modified double chains | |||
| VIII/F.15 - Sapphirine - Surinamite series | |||
Other Sapphirine Information |
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| NAME( Duda&Rejl90) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Heinrich65) | |||
| Links to other databases for Sapphirine : 1 -Am. Min. Crystal Structure Database 2 - Applied Mineralogy 3 -Athena 4 - Crocoite.com Mineral Locations 5 -Google Images 6 -Google Scholar 7 -Handbook of Mineralogy (MinSocAm) 8 -Handbook of Mineralogy (UofA) 9 -MinDAT 10 -MinMax(Deutsch) 11 -MinMax(English) 12 -Mineralienatlas (Deutsch) 13 -QUT Mineral Atlas 14 - WWW-MINCRYST Search for Sapphirine using: Visit our Advertisers for Sapphirine : Translate Sapphirine Mineral Data : Ask about Sapphirine here : Print or Cut-and-Paste your Sapphirine Specimen Label here :
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