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Francevillite Mounanaite & Chervetite

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JYJ756739

Francevillite Mounanaite & Chervetite

EDS conf. specimen no 19-07-16-M
Analysed

Description Tabs

Description
Locality: 
Mounana Mine, Franceville, Haut-Ogooué Province, Gabon
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.6 × 4 × 3.6 cm
Description

EDS conf. specimen no 19-07-16-M hosting grey chervetite (images 1-3) associated with powdery curienite, green lenoblite, brown mounanaite (image 8) and mainly red francevillite (images 4-6). Comes with a copy of an old label dating to 1967. 

Historic material!

 

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

Mounanaite

Formula: 
PbFe3+2(VO4)2(OH,F)2
Strunz: 
8.CG.15
Crystal System: 
Triclinic
Hardness: 
0.0
Type Locality: 
Mounana Mine (Mouana Mine), Franceville, Haut-Ogooué Province, Gabon

Chervetite

Formula: 
Pb2(V2O7)
Strunz: 
8.FA.15
Hardness: 
2.0 - 2.5
Type Locality: 
Mounana Mine (Mouana Mine), Franceville, Haut-Ogooué Province, Gabon