Peach colored TOPAZ crystal. The terminated end is rough but all of the sides are transparent. The white mineral is Albite (Feldspar). The Topaz can be cut into a gemstone. Topaz is the birthstone for November.
This piece is from the collection of Roger Maynard. Roger is a friend and was a long-time geologist with the US Geological Survey in New Mexico.
TOPAZ is an aluminum silicate with a second anion of fluorine and hydroxl. Topaz can be in either the Orthorhombic or Triclinic crystal systems depending on the F:OH ratio. Hardness is 8 on the Mohs scale. Topaz occurs in pegmatites and high-temperature quartz veins, also in cavities in granites and rhyolites. Blue Topaz is the state gemstone of Texas.
Location: Dassu, Braldu Valley, Skardu District, Gilgit-Baltistan, Pakistan
Specimen size: 1.1 x 1.1 x 0.9 inches
Specimen weight: 45 grams (1.6 ounces)
Brought to you by SIDEWINDER MINERALS
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