The antimony oxide Valentinite forms an inverted spray of translucent, cream acicular crystals in a tight, splayed cluster on top of a Galena matrix. From Lill mine in the Brezov' Hory Ore Region of Pr'bram, this mine worked the Cernojamsk' Deposit, a vein containing several metals including Silver. This small miniature has a Galena matrix whose top surface is encrusted in crystallised Galena with overgrowths of burnt orange Sphalerite crystals to 1 mm and curved buff blades of Siderite. The Valentinite forms a crow's foot spray with its broad end attached to the Galena.
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