Pyrochlore Group, Zircon (Var: Cyrtolite)

Specimen ID: Y3C-2K4

Mineral(s)
Pyrochlore Group : A2Nb2(O,OH)6Z
Zircon (Var: Cyrtolite) : Zr[(SiO4),(OH)4]
Locality
As recorded:
St Peters Dome, Cheyenne District, El Paso Co., Colorado, USA
Mindat locality:
Events

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Octahedral crystal associated with reddish-brown cyrtolite crystals; 6 x 4 x 4 cm; 105.5 grams; This could be one of the largest pyrochlores from Colorado. I purchased this one at the Colorado School of Mines Geological Museum. It was erroneously labeled as monazite. The specific gravity of this piece came in at 4.3 and it registered 2000 CPM on a Radalert 100. A rare combination specimen! Collection of Rudy Bolona.
Rudy Bolona - 7th July 2013

Photo added to mindat.org

Rudy Bolona - 7th July 2013

Photo added to mindat.org

Rudy Bolona - 7th July 2013
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