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Topaz With Opal Hyalite

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PDM1081091

Topaz With Opal Hyalite

Fluorescent

Description Tabs

Description
Locality: 
Tepetate, Villa de Arriaga Municipality, San Luis Potosi, Mexico
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
10 × 8 × 5.4 cm
Largest Crystal: 
3.90cm
Weight: 
308.00gr
Description

Lustrous text book and well-developed gemmy crystals of topaz that reach 3.9 cm. The vitreous lustre is very intense with a pale colour. Some smaller topaz crystals have red terminations due to unknown inclusions, probably goethite. The main crystals are formed by the prism {110}, modified by {120}, beveled by {010} and (001) at the top. Furthermore, the matrix is opulently covered by water clear opal-AN (hyalite) that looks like frozen water bubbles. It displays a strong green fluorescence under short UV illumination, and lighter pale green under long UV.

Acquired in the early 1980’s, it is an Ex Roger Leemans specimen.

Combine specimens to reduce shipping costs!.

Mineral Data
What's on the rock

Topaz

Formula: 
Al2(SiO4)(F,OH)2
Strunz: 
9.AF.35
Crystal System: 
Orthorhombic - Dipyramidal
Hardness: 
8.0
Streak: 
White

Opal

Formula: 
SiO2·nH2O
Strunz: 
4.DA.10
Hardness: 
5.5 - 6.5
Streak: 
White

Hyalite

Variety Of: 

Opal

Formula: 
SiO2·nH2O
Strunz: 
4.DA.10
Hardness: 
5.5 - 6.5
Formula: 
SiO2·nH2O
Hardness: 
5.5 - 6.5
Streak: 
white

Current price

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Start 07 Nov 18:00
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Shipping Information

Postage Area Price
Belgium <2Kg (Unregistered)
7
NL, DE, FR, LU <2Kg (Unregistered)
12
Rest EU <2Kg (Unregistered)
14
EUROPE (NO EU) <2Kg (Unregistered)
15
USA <2Kg (Unregistered)
19
REST OF THE WORLD <2Kg (Unregistered)
21

Seller Information

Payment options: offline, paypal_wpp, paypal_wps

Bid History

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