ATHENA MINERALOGY |
Mineral: | SAPPHIRINE |
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Name: | Sapphirine |
Formula: | (Mg,Al)8(Al,Si)6O20 |
Crystal System: | Monoclinic / Anorthic (Triclinic) |
Group: | Sapphirine supergroup. Sapphirine group |
IMA Number: | 1819 |
References: | AM 73 (1988), 1134; HB2/2 (1995); Contrib. Min. Pet. 68 (1979), 357 |
Type Locality: | Fiskenäs, Nuuk area, Greenland |
Comments: | Polytypes -2M,-4M, 1A,-2A,-5A |
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