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Valentinite Sénarmontite & Coquandite

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PAV965927

Valentinite Sénarmontite & Coquandite

Classic Locality

Description Tabs

Description
Locality: 
Ribeiro da Serra, Medas, Gondomar, Porto District, Portugal
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
1.7 × 3.2 × 2.4 cm
Description

Very nice sample and a true rarity for the locality!!!

Group of golden crystals of valentinite in a vug filled with senarmontite crystals. Coquandite is also present as small white crystals.

Spectacular combo for this defunct locality.!!!

 

Collected: 
Boxed with Label
Mineral Data
What's on the rock

Valentinite

Formula: 
Sb2O3
Strunz: 
4.CB.55
Hardness: 
2.5 - 3.0
Streak: 
White
Type Locality: 
Les Chalanches Mine, Allemont, Isère, Rhône-Alpes, France

Sénarmontite

Formula: 
Sb2O3
Strunz: 
4.CB.50
Hardness: 
2.0 - 2.5
Streak: 
White
Type Locality: 
Djebel Hammimat Mine, Ain Babouche, Ain Beida, Constantine Province, Algeria

Coquandite

Formula: 
Sb6+xO8+x(SO4)(OH)x(H2O)1- x (x = 0.3)
Strunz: 
7.DE.35
Crystal System: 
Triclinic
Hardness: 
3.0 - 4.0
Type Locality: 
Lucky Knock Mine (Lawrence Mine), Whitestone Coulee, Tonasket, Okanogan Co., Washington, USA