Very rich specimen of black uraninite in hematite-stained gneiss matrix from the Aubrey – Ladwig Mine, Ralston Buttes Mining District, Jefferson County, Colorado, USA. Good specimen for this very uncommon and obscure Colorado front range locality. Measures ~80,000 CPM on my Ludlum Model 3 Counter with the 44-9 probe. Rare!
$140.00
In stock
Species: Gummite, Uraninite
Locality: Biermann Quarries, Bethel, Fairfield County, Connecticut, USA
Size: 1.6 x 1.3 x 0.8 cm
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Species: Becquerelite, Uraninite, Uranophane
Locality: Wölsendorf, Schwarzach bei Nabburg, Schwandorf District, Upper Palatinate, Bavaria, Germany
Size: 6.1 x 3.2 x 2.3 cm
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Species: Uraninite, Zippeite
Locality: Radium King Mine, Red Canyon Mining District, San Juan County, Utah, USA
Size: 6.2 x 5.0 x 3.0 cm, 162 grams
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Species: Johannite, Uraninite, Uranopilite, Zippeite-(Na)
Locality: Happy Jack Mine, White Canyon Mining District, San Juan County, Utah, USA
Size: 7.5 cm x 7 cm x 4 cm
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