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Apophyllite With Amethyst

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QRI810123

Apophyllite With Amethyst

Former collection Burger (CH)
Classic Locality

Description Tabs

Description
Locality: 
Veta Madre, Guanajuato, Guanajuato Municipality, Guanajuato, Mexico
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
2.5 × 4.5 × 1.8 cm
Largest Crystal: 
0.80cm
Weight: 
17.00gr
Description

Elegant and contrastful miniature consisting of an amethyst drusy of delicate color populated with a dozen colorless apophyllite crystals. Good lustre for both species, crystal shape is textbook especially for the apophyllite, which ranges from flattened to pyramidal termination. Some apophyllite crystals show a good translucence too.

Unusually seen in this quality and rather uncommon on the market, the lovely specimen comes from the collection Burger (CH) and it is dated back to the 60s-70s.

Pasted Label
Mineral Data
What's on the rock

Apophyllite

Synonym Of: 

Fluorapophyllite-(K)

Formula: 
KCa4(Si8O20)(F,OH)·8H2O
Strunz: 
9.EA.15
Hardness: 
4.5 - 5.0

Fluorapophyllite-(Na)

Formula: 
NaCa4(Si8O20)F·8H2O
Strunz: 
9.EA.15
Hardness: 
4.0 - 5.0

Hydroxyapophyllite-(K)

Formula: 
KCa4(Si8O20)(OH,F)·8H2O
Strunz: 
9.EA.15
Hardness: 
4.0 - 5.0

Amethyst

Variety Of: 

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Hardness: 
7.0
Formula: 
SiO2
Hardness: 
0.0
Colour: 
Purple

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