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MD-176291 - Stokesite - - Archived Urucum mine (Tim mine; Córrego do Urucum pegmatite), Galiléia, Doce valley, Minas Gerais, Southeast Region, Brazil thumbnail, 1.8 x 1.7 x 1.6 cm.
1.8 x 1.7 x 1.6 cm. This is a spherical aggregate of lustrous, colorless stokesite blades from the one-time, early 1970s find at the very famous Corrego do Urucum pegmatite of Brazil. Ex. Carl Davis Collection.
MD-206836 - Stokesite, Stannomicrolite, Albite - - Archived Urucum mine (Tim mine; Córrego do Urucum pegmatite), Galiléia, Doce valley, Minas Gerais, Southeast Region, Brazil miniature, 4.1 x 3.3 x 3.0 cm.
4.1 x 3.3 x 3.0 cm. An excellent example of both of these species from an important find brought to market by Carlos Barbosa before he passed away, in the late 1990s. I recall when these came out, it was almost impossible to find even a single specimen with both the Stokesite (the sharp white crystals) and the stannomicrolite (brown crystal) on the same specimen - let alone in close proximity. This is an aesthetic representation of both species, in unusual association. Both crystals are of unusually good size for the find, as well. Ex. Dr. Mark Feinglos Collection.
MD-221148 - Stokesite, Albite (Var: Cleavelandite) - - Archived Urucum mine (Tim mine; Córrego do Urucum pegmatite), Galiléia, Doce valley, Minas Gerais, Southeast Region, Brazil thumbnail, 3.1 x 2.5 x 2.4 cm.
3.1 x 2.5 x 2.4 cm. Stokesite is a very rare calcium, tin silicate. A gorgeous little 1.0 cm radial spray of glassy stokesite crystals is beautifully perched atop a cluster of pearlescent, parallel-growth cleavelandite blades. This excellent specimen is from the Corrego do Urucum pegmatite of Brazil and is a very uncommon, gemmy spray of the species. Most Urucum stokesites are spherical, radial aggregates. Older material, from Carlos Barbosa, back in the late 1990s.
MD-222490 - Stannomicrolite, Stokesite - - Archived Urucum mine (Tim mine; Córrego do Urucum pegmatite), Galiléia, Doce valley, Minas Gerais, Southeast Region, Brazil thumbnail, 1.2 x 1.1 x 0.9 cm.
1.2 x 1.1 x 0.9 cm. An excellent thumbnail of rarities from the 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 a very rare calcium, tin silicate. Older material.
MD-265774 - Stokesite, Schorl - - Archived Urucum mine (Tim mine; Córrego do Urucum pegmatite), Galiléia, Doce valley, Minas Gerais, Southeast Region, Brazil cabinet, 12.0 x 5.7 x 4.3 cm.
12.0 x 5.7 x 4.3 cm. This is a very rich specimen of the extremely rare tin species, stokesite. Although it occurs in other lcoales, in real crystals of interest to the collector, I think this is the only locality that has produced any quantity. Most of those crystals are in radial aggregates that looked as if they were glued together with natural cement, and are not exactly the prettiest of material. However, rarely, specimens like this with more individual, sharply terminated crystals can occur. This specimen must have 100 crystals, to 2mm or so, scattered about in rich veins on the surface of a large shard of schorl tourmaline.
rar09-mf10 - Stokesite with Stannomicrolite on Albite - $ 200 Urucum Mine, Galileia, Minas Gerais, Brazil miniature, 4.1 x 3.3 x 3.0 cm
ex. Dr. Mark Feinglos Collection An excellent example of both of these species from an important find brought to market by Carlos Barbosa before he passed away , in the late 1990s. I recall when these came out, it was almost impossible to find even a single specimen with both the Stokesite (the sharp white xls) and the stannomicrolite (brown crystal) on the same specimen - let alone in close proximity. This is an aesthetic representation of both species, in unusual association, on a well trimmed matrix of bladed albite so it displays nicely. Both crystals are of unusually good size for the find, as well. All Content and Design ©1996-2010 The ArkenstonePowered by http://mineralwebsites.comBy-species Galleries | ||||||||||||
