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Pyromorphite & Coronadite

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PCZ662598

Pyromorphite & Coronadite

Description Tabs

Description
Locality: 
Old Luganure Mine, Glendasan, County Wicklow, Irish Republic (Eire)
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.5 × 5.5 × 3.5 cm
Description

Sharp, bright green pyromorphite crystals and coronadite contrasting well with a light coloured matrix. There is a cavity on the back with yellow crystallization.

A pleasing specimen from a rarely offered locality.

(L)

Mineral Data
What's on the rock

Pyromorphite

Formula: 
Pb5(PO4)3Cl
Strunz: 
8.BN.05
Crystal System: 
Hexagonal
Hardness: 
3.5 - 4.0
Streak: 
White
Type Locality: 
Zschopau, Erzgebirge, Saxony, Germany

Coronadite

Formula: 
Pb(Mn64+Mn23+)O16
Strunz: 
4/D.08-70
Crystal System: 
Monoclinic
Hardness: 
4½ - 5
Colour: 
Dark gray, black
Type Locality: 
Horseshoe Mine, Coronado Mine, Coronado vein, Copper Plate Gulch, Copper Mountain District, Greenlee County, Arizona, USA
Isostructural with: 
Cryptomelane
Ferrihollandite
Hollandite
Manjiroite
Strontiomelane
Peter Crozier Minerals