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Fluorapophyllite On Quartz

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GND31504

Fluorapophyllite On Quartz

Classic Locality

Description Tabs

Description
Locality: 
Pune (Poonah), Maharashtra, India
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.7 × 4.5 × 3 cm
Description

While ther is a lot of Indian zeolites on the market, this little specimen caught my eye. There are transparent fluorapophyllite crystals sitting on a bed of milky drusy quartz. The largest fluorapophyllite is nearly 3cm long but the square section at one may be a cleavage break. I'm not 100% sure of this but it is likely.

The specimen has also crystallised on the reverse side also and has a brownish stain which may be clay or similar. A perfect size and shape and it sits perfectly upright for display.

Mineral Data
What's on the rock

Fluorapophyllite

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

Quartz

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