1) Calcium mineral 2) Iron mineral 3) Monoclinic mineral
Found on
https://www.crosswordclues.com/clue/graftonite
Graftonite is an iron(II), manganese, calcium phosphate mineral with formula: (Fe2+,Mn,Ca)3(PO4)2. It forms lamellar to granular translucent brown to red-brown to pink monoclinic prismatic crystals. It has a vitreous luster with a Mohs hardness of 5 and a specific gravity of 3.67 to 3.7. It was first described from its type locality of Melvin Moun...
Found on
http://en.wikipedia.org/wiki/Graftonite
No exact match found.
