Switch currency

Anatase Tourmaline Calcite & Apatite

Views:
Watches:
SER1165370

Description Tabs

Description
Locality: 
Beura Quarries, Beura-Cardezza, Verbano-Cusio-Ossola Province, Piedmont, Italy
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.1 × 4.1 × 3.1 cm
Description

dozens of black anatase crystals on adularia with brown elongated tourmaline - dravite -, some clusters of hexagonal calcite and tiny colourless apatite prisms

Mineral Data
What's on the rock

Anatase

Formula: 
TiO2
Strunz: 
4.DD.05
Hardness: 
5.5 - 6.0
Type Locality: 
St Christophe-en-Oisans, Bourg d'Oisans, Isère, Rhône-Alpes, France...

Tourmaline

Formula: 

A(D3)G6(T6O18)(BO3)3X3Z

Crystal System: 
Trigonal
Hardness: 
7

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White

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

Current price

Starting price

20
(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 17 Feb 18:00
End
No. of bids view history

Shipping Information

Postage Area Price

Bid History

Full bid history