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Chalcedony With Quartz

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PDM1155461

Description Tabs

Description
Locality: 
Barros Cassal, Rio Grande do Sul, Brazil
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.9 × 3.8 × 1 cm
Weight: 
15.00gr
Description

A perfect example of these tabular, banded concentric ribbons of chalcedony, covered by sugary lustrous quartz crystals, with a green fluorescence under short UV light. The center is occupy by a flower of transparent quartz crystals.

Nice specimen, likely from Barros Cassal, in Rio Grande do Sul. Acquired in 31/5/1975. Ex Gustaf collection #90, with his handwritten label.

Combine specimens to reduce shipping costs!.

 

Shipment WITH tracking to USA: €39.00; NO tracking: €20.00.

Mineral Data
What's on the rock

Chalcedony

Variety Of: 

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Hardness: 
7.0
Hardness: 
6.5 - 7.0
Streak: 
White
Type Locality: 
Kadıköy (Chalcedon), Istanbul Province, Marmara Region, Turkey

Quartz

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

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