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Aquamarine & Muscovite

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NST692592

Aquamarine & Muscovite

Description Tabs

Description
Locality: 
Medina Pegmatite, Pedra Azul, Minas Gerais, Brazil
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.5 × 5.5 × 3 cm
Largest Crystal: 
3.50cm
Description

A fine older example of pale blue Aquamarine up to 3.5 cm and platy Muscovites from Pedra Azul

Mineral Data
What's on the rock

Aquamarine

Variety Of: 

Beryl

Formula: 
Be3Al2(Si6O18)
Strunz: 
9.CJ.05
Hardness: 
7.5 - 8.0
Formula: 
Be3Al2Si6O18
Hardness: 
0.0
Colour: 
Blue
Streak: 
White

Muscovite

Formula: 
KAl2(AlSi3O10)(OH)2
Strunz: 
9.EC.15
Hardness: 
2.5
Streak: 
White
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