Mimetite on Philipsbornite Hat Yai province Thailand list price $800
Mimetite specimens attributed to the Hat Yai District were actually mined at the Guatomo Mine (‘Hat Yai’ mimetite locality), Tham Thalu, Bannang Sata District, Yala Province, Thailand.
Mimetite, whose name derives from the Greek Μιμητής mimetes, meaning ” imitator”, is a lead arsenate chloride mineral which forms as a secondary mineral in lead deposits, usually by the oxidation of galena and arsenopyrite. The name is a reference to mimetite’s resemblance to the mineral pyromorphite.
Mimetite is a member of the Apatite group, a group of isomorphous hexagonal minerals. It is very similar in structure and appearance to Pyromorphite, and may be partially replaced by it. In fact, sometimes Mimetite and Pyromorphite are virtually indistinguishable from each other and may be wrongly labeled as the other. Mimetite is also structurally similar to Vanadinite, and may also be partially replaced by it. The intermediary member between Mimetite and Vanadinite is known as Endlichite.