
1) Orthorhombic mineral
Found on
https://www.crosswordclues.com/clue/ferrogedrite

==Occurrence== Specimens of ferrogedrite have been collected in the greenstone belt of Africa, in the mountains of Norway, Greenland, Japan and in amphibole specimens from northwest America as well as the southern coast of California. Ferrogedrite exists in low temperature, high pressure contact metamorphic geologic settings and remain stable up t...
Found on
http://en.wikipedia.org/wiki/Ferrogedrite
No exact match found.