Dragon Minerals - Update July 14, 2019

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31008:
Rheniite
Kudriavy Volcano, Iturup Island, Kuril Islands, Sakhalin Oblast, Russia   Type locality
Miniature - 3.4 x 2.2 x 2.1 cm (1.3 x 0.9 x 0.8 inches)
10 grams with stand (0.02 pounds)
Specimen status: Sold

Rheniite is the only mineral with rhenium as a major component. Chemically it is a simple sulfide (ReS2) but its volatility and the crustal rarity of rhenium makes this a rare minerals (Mindat gives just eight global localities of which Kudriavy Volcano is by far the most famous). To collect it one must climb into deep, active volcanic vents. It is my understanding that recent activity at the volcano has blown away the original find, and so we can call this an extinct locality. This sample features several patches of bright, glittery rheniite on a drab gray volcanic matrix. Best viewed under magnification. Affixed to an acrylic stand for display but easily dismounted if desired. Available (but expensive) from numerous dealers in the early 1990's, but very hard to find now (especially at this price).









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