Uytenbogaardtite

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Uytenbogaardite
General
Category Sulfide mineral
Formula
(repeating unit)
Ag3AuS2
Strunz classification 02.BA.40b
Identification
Formula mass 584.70 gm
Color Greyish white
Crystal habit Microscopic crystals
Crystal system Tetragonal (P 4122)
Mohs scale hardness 2
Luster Metallic
Diaphaneity Opaque
References [1][2][3][4]

The mineral uytenbogaardtite, Ag3AuS2, is a soft, greyish white sulfide mineral, occurring in hydrothermal Au-Ag-quartz veins. It occurs as tiny crystals, visible only with a microscope. It has a metallic luster and a hardness on the Mohs scale of 2 (gypsum).

It forms, together with petzite (Ag3AuTe2) and fischesserite (Ag3AuSe2) the uytenbogaardtite group. The type locality is Tambang Sawah, Bengkulu district, Sumatra island, Indonesia.

It is named after the Dutch mineralogist Willem Uytenbogaardt (1918 – 2012), Professor of Geology, Technical University, Delft, The Netherlands, prominent ore microscopist.

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