1. TungstiteTungstite is a hydrous tungsten oxide mineral with formula: WO3·H2O. It is a secondary mineral formed by the weathering of other tungsten containing minerals. It crystallizes in the orthorhombic system in translucent yellow to yellow green masses. It is clay-like with Mohs hardness of 2.5 and a specific gravity of 5.5. It was first described in 1868 for an occurrence near Trumbull, Connecticut at the Hubbard Tungsten Mine at Long Hill.
Read “Tungstite” on English Wikipedia
Read “重石華” on Japanese Wikipedia
Read “Tungstite” on DBpedia
Read “Tungstite” on English Wikipedia
Read “重石華” on Japanese Wikipedia
Read “Tungstite” on DBpedia
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