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Gyrolite & Apophyllite

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HCH1081799

Description Tabs

Description
Locality: 
Ljósá, Eysturoy Island, Faroe Islands, Denmark
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
9 × 6 × 5 cm
Largest Crystal: 
0.70cm
Description

Hi! Here are some speciems that i´ve doing out of my collection and that i offer here.

On this speciem there is a rich mineralisation of platy thin crystals of Gyrolite sitting on Basalt. In the Parageneses there is farther a about 7 mm large crystal of Apophyllite.

Interessting and good speciem from the Ljósá quarry that i had found myself there.

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

Current price

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Shipping Information

Postage Area Price
Germany
5.50
Europe
12
Europe registered
17
Oversea (US, Asia, Australia)
$25

Seller Information

Payment options: offline, paypal_wpp, paypal_wps

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