1) Calcium mineral 2) Hexagonal mineral
Found on
https://www.crosswordclues.com/clue/bentorite
Bentorite is a mineral with the chemical formula Ca6(Cr,Al)2(SO4)3(OH)12·26(H2O). It is colored violet to light violet. Its crystals are hexagonal to dihexagonal dipyramidal. It is transparent and has vitreous luster. It has perfect cleavage. It is not radioactive. Bentorite is rated 2 on the Mohs Scale. The mineral was first described in 1980 by...
Found on
http://en.wikipedia.org/wiki/Bentorite
No exact match found.
