Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Brannerite from
Buca della Vena Mine, Pontestazzemese, Stazzema, Lucca Province, Tuscany, Italy


Locality type:Mine
Classification
Species:Brannerite
Formula:UTi2O6
Comments:XRD show that this mineral is amorphous, even after heating up to 900°C. EDS analysis show only the presence of U and Ti. It can be brannerite or orthobrannerite.
Habit:prismatic xls
Colour:black
Confirmation
Validity:Unconfirmed/Questioned
Associated Minerals:
Associates:Pyrite
Data
Mineral Data:Click here to view Brannerite data
Locality Data:Click here to view Buca della Vena Mine, Pontestazzemese, Stazzema, Lucca Province, Tuscany, Italy
Data Identifiers
Mindat Occurrence Record ID:347149
Long-form Identifier:1:3:347149:4
GUID (UUID V4):0
Nearest other occurrences of Brannerite
19.5km (12.1 miles) ⓘPratazzolo Quarry (Pratazzolo B Quarry; Pulcinacchia), Pescina-Boccanaglia quarrying basin, Carrara, Massa-Carrara Province, Tuscany, Italy
References
Orlandi, P. & Campostrini, I. (2005): Zibaldone. Aggiornamenti di mineralogia italiana 2004. Rivista Mineralogica Italiana, 3/2005, 184-191.
 
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