Rare mineral, a silicate of magnesium and aluminium
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Sapphirine
Indigo-blue sapphirine crystal from Ft. Dauphin, Madagascar (size: 2.1 x 1.9 x 1.4 cm)
X = colorless, pale reddish, yellowish green, pale yellow; Y = sky-blue, lavender-blue, bluish green; Z = blue, sapphire-blue, dark blue
2V angle
Measured: 47 to 114°
References
[2][3][4]
Sapphirine is a rare mineral, a silicate of magnesium and aluminium, with the chemical formula (Mg,Al)8(Al,Si)6O20 (with iron as a major impurity). Named for its sapphire-like colour, sapphirine is primarily of interest to researchers and collectors: well-formed crystals are treasured and occasionally cut into gemstones. Sapphirine has also been synthesized for experimental purposes via a hydrothermal process.
Sapphirine is a rare mineral, a silicate of magnesium and aluminium, with the chemical formula (Mg,Al)8(Al,Si)6O20 (with iron as a major impurity). Named...
The tub gurnard (Chelidonichthys lucerna), also known as the sapphirine gurnard, tube-fish, tubfish or yellow gurnard, is a species of marine ray-finned...
pyrope has inclusions of coesite, and some has inclusions of enstatite and sapphirine. Pyrope is common in peridotite xenoliths from kimberlite pipes, some...
dehydration melting conditions include sapphirine, spinel, sillimanite, and osumilite. Some assemblages such as sapphirine + quartz indicate very high temperatures...
in association with garnet, cordierite, anthophyllite, cummingtonite, sapphirine, sillimanite, kyanite, quartz, staurolite and biotite. Gedrite was first...
The mineral khmaralite is a beryllium bearing mineral of the sapphirine group with a chemical formula of (Mg,Al,Fe)16[(Al,Si,Be)12O36]O40. It is most associated...
features quartz, plagioclase, sillimanite, cordierite, orthopyroxene, sapphirine, and aluminum spinel. For a calcareous protolith, the sequence is calcite...
dorrite crystals from Chelyabinsk, Russia General Category Inosilicate Sapphirine supergroup Formula (repeating unit) Ca2Mg2Fe43+(Al4Si2)O22 IMA symbol...
described (by Amelia, thus romantically) as tall, well-muscled, with "sapphirine" eyes and dark, wavy black hair. In The Mummy Case, he is described as...
of the resultant red/brown soils. Gemstones such as zircon, sapphire, sapphirine and ruby were formed from the volcano. Nearby Careys Peak is considered...
dolomite, feldspar, magnesite, margarite, mica, pargasite, pyroxene, rutile, sapphirine, and sillimanite. Other inclusions observed included iridescent fine needle-like...
Using a lutetium-hafnium (Lu-Hf) method to examine garnet, orthopyroxene, sapphirine, osumilite and rutile from this UHT granulite belt, Choi et al determined...
Owen, J.V., Longstaffe, F.J. and Greenough, J.D. (2003) Petrology of sapphirine granulite and associated sodic gneisses from the Indian Head Range, Newfoundland...
Using a lutetium-hafnium (Lu-Hf) method to examine garnet, orthopyroxene, sapphirine, osumilite and rutile from this UHT granulite belt, Choi et al determined...
Hardy, a weather observer at Wilkes Station in 1959. EDWARD S. GREW, Sapphirine + quartz association from Archean rocks in Enderby Land, Antarctica, American...
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