Cassiterite (Gemmy!)
Small Cabinet, 6.6 x 5.4 x 2.2 cm
Viloco, Araca District, La Paz Dept., Bolivia
Ex. Dr. Ed David
The world's gemmiest cassiterite crystals have, in the past, come from Viloco. Some Chinese crystals, some very few, now match them - but these have historicaly set the standard. However, specimens of this quality are now very scarce in the mineral market. This particular specimen is a cluster of lustrous, gemmy, brownish-tan cassiterite crystals to 2.2 cm in length. The crystal on the top left-hand side is not only gemmy but it is also classically twinned. A superb old specimen with no damage to the display face except at the bottom periphery and one contacted small crystal atop. Ex. Dr. Edward David Collection.
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