Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Gyrolite & Apophyllite

Views:
Watches:
NST693239

Gyrolite & Apophyllite

Description Tabs

Description
Locality: 
Gaulsberg Quarry, Ortenberg, Wetterau, Darmstadt, Hesse, Germany
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.2 × 2 × 1.9 cm
Description

Snow-white balls of Gyrolite (rare at this locality), waterclear Apophyllite and very small Pyrites in a basaltic vug. The quarry has been closed 1. 1. 2010. It is completely fenced-in and a natural reserve for the Eagle Owl.

Mineral Data
What's on the rock

Gyrolite

Formula: 
NaCa16Si23AlO60(OH)8·14H2O
Strunz: 
9.EE.30
Hardness: 
2.5
Streak: 
White
Type Locality: 
The Storr, Portree, Trotternish, Isle of Skye, North West Highlands (Inverness-shire), Scotland, UK

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