Switch currency

Bertrandite Apatite & Muscovite

Views:
Watches:
SER1140483

Description Tabs

Description
Locality: 
Golconda Mine, Golconda, Coroaci, Minas Gerais, Brazil
Class: 
Crystal Group/Cluster
Size Range: 
Small cabinet (7-10 cm)
Size: 
9.1 × 6.1 × 4.1 cm
Description

an albite specimen featuring dozens of white clusters of bertrandite crystals on green muscovite and with some light blue apatite crystals too ; purchased in Governador Valadares, Minas Gerais, Brazil, on 2023

Mineral Data
What's on the rock

Bertrandite

Formula: 
Be4(Si2O7)(OH)2
Strunz: 
9.BD.05
Crystal System: 
Orthorhombic
Hardness: 
6.0 - 7.0
Type Locality: 
Petit-Port, Nantes, Loire-Atlantique, Pays de Loire, France

Apatite

Synonym Of: 

Chlorapatite

Formula: 
Ca5(PO4)3Cl
Strunz: 
8.BN.05
Hardness: 
5.0

Fluorapatite

Formula: 
Ca2Ca3(PO4)3F
Strunz: 
8.BN.05
Hardness: 
5.0

Hydroxylapatite

Formula: 
Ca5(PO4)3(OH)
Strunz: 
8.BN.05
Hardness: 
5.0
Crystal System: 
Hexagonal
Hardness: 
5

Muscovite

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

Current price

Starting price

40
(reserve not met) (reserve met)

You are the highest bidder

You have been outbid

Proxy bid set
Delayed bid pending at
Delayed Bid is Outbid

Your maximum bid €:

(Enter or more)

Start 10 Feb 18:00
End
No. of bids view history

Shipping Information

Postage Area Price