1) Carbonate mineral 2) Magnesium mineral
Found on
https://www.crosswordclues.com/clue/barbertonite
Barbertonite is a magnesium chromium carbonate mineral with formula of [Mg6Cr2(OH)16CO3·4H2O]. It is a hexagonal polymorph of the mineral stichtite, and along with stichtite, is an alteration product of chromite in serpentinite. Barbertonite has a close association with stichtite, chromite, and antigorite (Taylor et al., 1973). A study published ...
Found on
http://en.wikipedia.org/wiki/Barbertonite
No exact match found.
