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Ranunculite Althupite & Triangulite

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JYJ785877

Ranunculite Althupite & Triangulite

Description Tabs

Description
Locality: 
Kobokobo Pegmatite, Mwenga, South Kivu, DR Congo
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.7 × 1.3 × 1.3 cm
Description

Yellow ranunculite and triangulite crystal groups associated with massive althupite in more brownish areas of the hosting rock. Other minerals present include threadgoldite and mundite. 

 

Mineral Data
What's on the rock

Ranunculite

Formula: 
HAl(UO2)(PO4)(OH)3·4H2O
Strunz: 
8.EB.40
Crystal System: 
Monoclinic
Hardness: 
3.0
Colour: 
Yellow
Type Locality: 
Kobokobo pegmatite, Mwenga, Sud-Kivu, Democratic Republic of Congo (Zaïre)

Althupite

Formula: 
AlTh(UO2)7(PO4)4(OH)5O2·15H2O
Strunz: 
8.EC.25
Crystal System: 
Triclinic
Hardness: 
3.5 - 4.0
Colour: 
Yellow
Streak: 
Yellow
Type Locality: 
Kobokobo pegmatite, Mwenga, Sud-Kivu, Democratic Republic of Congo (Zaïre)

Triangulite

Formula: 
Al3(UO2)4(PO4)4(OH)5·5H2O
Strunz: 
8.EB.45
Hardness: 
0.0
Type Locality: 
Kobokobo pegmatite, Mwenga, Sud-Kivu, Democratic Republic of Congo (Zaïre)