Stannomicrolite on Stokesite

Corrego do Urucum, Minas Gerais, Brazil
Thumbnail, 1.2 x 1.1 x 0.9 cm
Start Time: 03/25/2009 7:15:00 pm (CDT)
End Time: 04/02/2009 8:00:00 pm (CDT)
Auction Closed

Item Description

An EXCELLENT thumbnail of RARITIES from the famous Corrego do Urucum Pegmatite of Brazil. A RICH dusting of yellowish-brown stannomicrolite microcrystals coats glassy stokesite crystals. Stannomicrolite (a hydroxide) is the tin-rich member of the microlite subgroup of the pyrochlore group of minerals and is known from only THREE localities worldwide. Stokesite is an ULTRA RARE calcium, tin silicate. A RARELY available combination specimen of these ultra rare species. Older material.

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