1) Sodium mineral 2) Titanium mineral 3) Triclinic mineral
Found on
https://www.crosswordclues.com/clue/aenigmatite
Aenigmatite, also known as Cossyrite after Cossyra, the ancient name of Pantelleria, is a sodium, iron, titanium inosilicate mineral. The chemical formula is Na2Fe2+5TiSi6O20 and its structure consists of single tetrahedral chains with a repeat unit of four and complex side branches. It forms brown to black triclinic lamellar crystals. It has Mohs...
Found on
http://en.wikipedia.org/wiki/Aenigmatite
No exact match found.
