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Opal Var Black Opal

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SYA771929

Opal Var Black Opal

Rare Locality
Classic Locality

Description Tabs

Description
Locality: 
Tablon Mine, Erandique, Lempira Department, Honduras
Class: 
Massive/Crystalline
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.5 × 4 × 3 cm
Description

A colorful sample of "black opale" from Honduras. The main surface is polished.

 

The color change is much more vivid in reality, than I can show it with the pictures. .

Collected by my friend Michael Voigt, Hannover

Please note his article in - LAPIS Mineralienmagazin, Feb. 2019 - about the opales of Erandique, Honduras.

Mineral Data
What's on the rock

Opal

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

Black Opal

Variety Of: 

Precious Opal

Formula: 
SiO2·nH2O
Hardness: 
5.5 - 6.5
Hardness: 
0.0

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