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Brochantite & Malachite

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AST879837

Brochantite & Malachite

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Description
Locality: 
Kamariza Mines, Agios Konstantinos, Lavrion District, Attiki Prefecture, Greece
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 5.5 × 3 cm
Description

Very unusual for Lavrion spherical aggregates of intense green brochanthite on hard iron oxides matrix. Along spherical there are also acicular radiating brochantite crystal groups. Paler green velvet malachite crystals also present mainly at back side and in matrix cavity. Colorful specimen with very nice display and color contrast.

Mineral Data
What's on the rock

Brochantite

Formula: 
Cu4(SO4)(OH)6
Strunz: 
7.BB.25
Crystal System: 
Monoclinic
Hardness: 
3.5 - 4.0
Type Locality: 
Mednorudyanskoye Cu Deposit, Nizhnii Tagil, Sverdlovskaya Oblast', Middle Urals, Urals Region, Russia...

Malachite

Formula: 
Cu2(CO3)(OH)2
Strunz: 
5.BA.10
Crystal System: 
Monoclinic
Hardness: 
3.5 - 4.0

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Start 24 Nov 18:00
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12
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