Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Quartz & Dumortierite

Views:
Watches:
MGR747194

Quartz & Dumortierite

Description Tabs

Description
Locality: 
Vaca Morta Quarry, Boquira, Bahia, Brazil
Class: 
Combination
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.8 × 2.4 × 2.1 cm
Description

I saw only a fist full of these specimen at the Munich show - and selected only this one. The other crystals were not lustrous, all faces were powdered with dumotierite. This particular piece is lustrous at the front and water-clear inside - the blue color is a dumotierite layer at the backside. Very rare and very eye-catching material! No significant damages to report.

Mineral Data
What's on the rock

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White

Dumortierite

Formula: 
(Al,Fe3+)7(SiO4)3(BO3)O3
Strunz: 
9.AJ.10
Crystal System: 
Orthorhombic
Hardness: 
7.0 - 8.0
Type Locality: 
Ducarre's Quarry, Beaunant, Chaponost, Rhône, Rhône-Alpes, France...

Current price

Starting price

10
(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 02 Nov 18:00
End
No. of bids view history

Shipping Information

Postage Area Price
Austria 5
5
Europe 14
14
North America 16
16
Rest of World 19
19

Bid History

Full bid history

Item Toolbox