1) Calcium mineral
Found on
https://www.crosswordclues.com/clue/bultfonteinite
Bultfonteinite, originally dutoitspanite, is a pink to colorless mineral with chemical formula Ca2SiO2(OH,F)4. It was discovered in 1903 or 1904 in the Bultfontein mine in South Africa, for which the mineral is named, and described in 1932. Bultfonteinite is transparent and pale pink to colorless. The mineral occurs as radiating prismatic acicular...
Found on
http://en.wikipedia.org/wiki/Bultfonteinite
No exact match found.
