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Fluorbritholite-(Ce) Monazite-(Ce) & Allanite-(Ce)

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UVM627230

Fluorbritholite-(Ce) Monazite-(Ce) & Allanite-(Ce)

Dave Wilbur
Radioactive

Description Tabs

Description
Locality: 
Rusty Gold Mine, Jamestown, Boulder County, Colorado, United States of America
Class: 
Massive/Crystalline
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.1 × 5.5 × 3.7 cm
Description

A large mass containing radioactive and rare earth minerals from a classic Colorado locality.   This specimen features lustrous grains of fluorbritholite-(ce) as well as allanite-(ce), monazite-(ce) and likely other species.      This specimen was deaquisitioned from the radioactive mineral collection of the legendary Dave Wilbur.   

 

 

Mineral Data
What's on the rock

Fluorbritholite-(Ce)

Formula: 
Ca2(Ce,Ca)3(SiO4,PO4)3(F,OH)
Strunz: 
9.AH.25
Crystal System: 
Hexagonal
Hardness: 
5.0
Type Locality: 
Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry; Carrière Mont Saint-Hilaire), Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada

Monazite-(Ce)

Formula: 
(Ce,La,Nd,Th)(PO4)
Strunz: 
8.AD.50
Hardness: 
5.0 - 5.5
Type Locality: 
Ilmen Natural Reserve, Ilmen Mts, Chelyabinsk Oblast', Southern Urals, Urals Region, Russia...

Allanite-(Ce)

Formula: 
{CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Strunz: 
9.BG.05b
Crystal System: 
Monoclinic
Hardness: 
5.5 - 6.0
Type Locality: 
Qáqarssuatsiaq, Aluk Island, Kap Farvel, Kujalleq, Greenland

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