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Quartz & Fluorite

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CFL829262

Quartz & Fluorite

Fluorescent

Description Tabs

Description
Locality: 
Poudrette Quarry, Mont Saint-Hilaire, Québec, Canada
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.3 × 2.6 × 2.5 cm
Description

Highly fluorescent green fluorite crystals associated with fluorescent quartz.  Very surprising, the quartz is fluorescent green under SW UV light and weakly dark green under LW UN light, which is quite unusual.  Under the microscope, the weakly smokey quartz crystals appear to be partially overgrown by a colorless gemmy to opaque species but the fluorescence comes from within the quartz crystals themselves.   Collected by Gilles Haineault in 2017.

Mineral Data
What's on the rock

Quartz

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

Fluorite

Formula: 
CaF2
Strunz: 
3.AB.25
Crystal System: 
Isometric
Hardness: 
4.0
Streak: 
White
Type Locality: 
J√°chymov (St Joachimsthal), J√°chymov District (St Joachimsthal), KruŇ°n√© Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (B√∂hmen; Boehmen), Czech Republic

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