mineral specimens
rare minerals
mineral dealer
systematic minerals
Black Hills minerals
fine minerals
mineral dealer
Dana minerals
IMA minerals
mineral collections
rock and minerals
gem crystal
Checkout
0 item @ $0.00  
Home | My Cart | Login | Register

Uranmicrolite with tourmaline

#BAC63787
SOLD
Uranmicrolite from Virgem da Lapa, Minas Gerais, Brazil - BAC63787
Uranmicrolite from Virgem da Lapa, Minas Gerais, Brazil - BAC63787

Uranmicrolite with tourmaline

#BAC63787
Availability
Sold
Size
2 x 1 x 1 cm - Thumbnail 
Formula
(Ca,U,Na)2-x(Ta,Nb)2(O,OH)7 (RRUFF)
Locality
Virgem da Lapa, Minas Gerais, Brazil

Tin, 1mm and less, yellow crystals.

Discredited

Uranmicrolite

Formula
(U,Ca)2(Ta,Nb)2O6(OH) 
Crystal System
Isometric 
Crystal Habit
Octahedral Crystals 
Cleavage
None, None, None 
Luster
Greasy (Oily) 
Color
greenish brown, yellow brown, black 
Streak
yellow 
Class
Isometric - Hexoctahedral 
Fracture
Uneven 
Hardness
5.5 

Data courtesy of Webmineral.

Collection
William & Anne Cook Collection
Special Info
Discredited
Mineralpedia
View Uranmicrolite
On Dakota Matrix
Previously Sold Uranmicrolite
On Dakota Matrix
Other Available Uranmicrolite
WebMineral
View Uranmicrolite
Mindat
View Uranmicrolite

Other Sold

All photos by Dakota Matrix and are Copyrighted © and may not be used without permission. Copyright © 2025 - Dakota Matrix Minerals, Inc. Privacy | Terms & Conditions | Site Map