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Francevillite

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Francevillite

Description Tabs

Description
Locality: 
Mounana Mine, Franceville, Haut-Ogooué Province, Gabon
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.5 × 3.5 × 2 cm
Description

A very rich sample hosting intense green francevillite crystals. Mostly undamaged! Type locality!

References:

 

C.R.Acad.Sci.Paris (1957) 245, 89-91

 

Mineral Data
What's on the rock

Francevillite

Formula: 
(Ba,Pb)(UO2)2(VO4)2·5H2O
Strunz: 
4.HB.15
Hardness: 
3.0
Type Locality: 
Mounana Mine (Mouana Mine), Franceville, Haut-Ogooué Province, Gabon