Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Plancheite & Chrysocolla Psm Quartz

Views:
Watches:
TBM785080

Plancheite & Chrysocolla Psm Quartz

New Discovery

Description Tabs

Description
Locality: 
Kimbedi, Mindouli District, Pool Region, Congo (Republic)
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.2 × 5.2 × 3.5 cm
Weight: 
122.00gr
Description

Interesting pseudomorphosis of Planchete and  Crysocolla on Quartz crystal of 5 mm. The pseudomorphosis has concerned the cusp of the quanzo crystal with the transformation of the blue plancheite and the prism with emerald green crysocolla.

Mineral Data
What's on the rock

Plancheite

Formula: 
Cu8(Si8O22)(OH)4·H2O
Strunz: 
9.DB.35
Crystal System: 
Orthorhombic
Hardness: 
6.0
Type Locality: 
Sanda carriere (Sanda quarry; Sanda Mine), Mindouli, Mindouli District, Pool Department, Republic of Congo (Brazzaville)

Chrysocolla

Formula: 
Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O (x < 1)
Strunz: 
9.ED.20
Crystal System: 
Monoclinic
Hardness: 
2.5 - 3.5

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White