- Tellurite
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This article is about the mineral. For the similarly named Star Trek race, see Tellarite. For the tellurium anion, see tellurite (ion).
Tellurite
Tellurite mineralGeneral Category Oxide minerals Chemical formula TeO2 Strunz classification 04.DE.20 Identification Color Yellow to white Crystal habit Prismatic to acicular crystals Crystal system Orthorhombic Cleavage Perfect on {010} Mohs scale hardness 2 Luster Sub-adamantine Diaphaneity transparent to opaque Specific gravity 5.88 - 5.92 Optical properties Biaxial (-) Refractive index nα = 2.000 nβ = 2.180 nγ = 2.350 Birefringence δ = 0.350 References [1][2] Tellurite is a rare oxide mineral composed of tellurium dioxide (TeO2).
It occurs as prismatic to acicular transparent yellow to white orthorhombic crystals. It occurs in the oxidation zone of mineral deposits in association with native tellurium, emmonsite and other tellurium minerals. Its name comes from Tellus, which is the Latin name for the planet Earth. [1][2]
References
- ^ a b http://webmineral.com/data/Tellurite.shtml Webmineral
- ^ a b http://www.mindat.org/min-3905.html Mindat
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