Berthierine

From WebRef.org
Jump to navigationJump to search

A monoclinic mineral, (Fe2+ ,Fe3+ ,Mg)2-2D3 (Si,Al)2 O5 (OH)4 of the kaolinite-serpentine group; dark steel-gray; in low-temperature vein deposits. Syn: martourite

Source: Dictionary of Mining, Mineral, and Related Terms


Sponsor: Dell Technologies Deals