Excellent specimen of well-formed brownish crystals of Zircon var. Cyrtolite from the Butterfield pegmatites, South Platte Pegmatite Mining District, Jefferson County, Colorado, USA. Measures ~75,000 CPM on my Ludlum Model 3 Counter with the 44-9 probe due to high Thorium content. Rare!
$220.00
In stock
Species: Thorite, Thorogummite, Zircon
Locality: Seerie pegmatite, South Platte Pegmatite Mining District, Jefferson County, Colorado, USA
Size: 16.2 x 10.3 x 7.4 cm
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Species: Uranopyrochlore, Zircon
Locality: McDonald Mine, Foley Township, Parry Sound District, Ontario, Canada
Size: 7.6 x 4.3 x 8.8 cm
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Species: Gummite, Uraninite, Zircon
Locality: Spruce Pine Mining District, North Carolina, USA
Size: 5.8 x 4.4 x 3.7 cm, 250 grams
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Species: Zircon
Locality: MacDonald Mine, Monteagle Township, Hastings Highlands Municipality, Hastings County, Ontario, Canada
Size: 4.1 x 2.9 x 1.3 cm
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