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Fensterquarz

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JWK758950

Fensterquarz

Cristosud
New Discovery

Description Tabs

Description
Locality: 
Allos, Alpes-de-Haute-Provence, Provence-Alpes-Cote d'Azur, France
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 2 × 1 cm
Weight: 
12.00gr
Description

A lustrous cluster of 'fenster' (window) quartz from our 2017 find.

That type of crystallization is very distinctive throughout the Alps : it features outstanding crystallization gaps creating hollows inside the crystal. These are then filled both with solid (clays, oxides) and fluid inclusions (carbonaceous gaz, aqueous liquids or oils) dating back to the quartz formation, in which it is now forever trapped and preserved.

Current knowledge tends to suggest fensterquartz from Allos crystallized prior to the Alps formation, more than 70 million years ago. Subsequent alpine tectonics fractured the crystals to some extent and they eventually healed to form complete clusters.

Mineral Data
What's on the rock

Fensterquarz

Variety Of: 

Quartz

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

Seller Information

Payment options: offline, paypal_wpp, paypal_wps

Seller's terms and conditions

The Cristosud team wishes to offer you the best service. In order to have your parcel shipped as soon as possible, please complete the payment within the 7 days following the purchase date. In cases you want to combine several specimens and save on shipping fees, or you encounter an issue completing the payment, please let us know by emailing us, so we can arrange it together.

We accept returns within 14 days after you received the item, in accordance with the French law. Return fees are at the expense of the buyer, except if you receive a damaged specimen, or an item different from what the description stated.

Do not hesitate to email us if you need more info about a specimen you plan to bid on.

Thanks for your confidence !