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Bertrandite With Apatite & Beryl

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QRI907503

Bertrandite With Apatite & Beryl

Former coll. Weber (CH)
With Antique Label

Description Tabs

Description
Locality: 
Amelia, Amelia County, Virginia, United States of America
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.4 × 4.7 × 2.8 cm
Largest Crystal: 
0.30cm
Weight: 
62.00gr
Description

Pegmatite specimen lined with numerous white bertrandite crystals associated to purple apatite and crude blue beryl. Bertrandite and apatite are very lustrous and nicely contrast with the surrounding greyish matrix. Lithionite is also mentioned in the label.

An absolute US oldtimer. This specimen comes from the Weber collection (Switzerland) which was collected pre-1950s. 

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

Beryl

Formula: 
Be3Al2(Si6O18)
Strunz: 
9.CJ.05
Crystal System: 
Hexagonal
Hardness: 
7.5 - 8.0
Streak: 
White

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