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: Uraninite, Uranophane
Locality: Ruggles Mine, Grafton, Grafton County, New Hampshire, USA
Size: 8.2 x 5.2 x 5.8 cm - 178 grams
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Species: Gummite, Uraninite
Locality: Ranger Mine, Kakadu, West Arnhem Region, Northern Territory, Australia
Size: 12.7 x 8.1 x 4.7 cm, 1022 grams
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Species: Fluorapatite, Fluorite, Titanite, Uraninite
Locality: Uluguru Mountains, Morogoro Region, Tanzania
Size: 4.9 x 4.5 x 3.5 cm
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Species: Carnotite, Tyuyamunite, Uraninite
Locality: Ambrosia Lake District, McKinley County, New Mexico, USA
Size: 7.8 x 3.8 x 8.3 cm, 314 grams
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