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Hyalophane

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Hyalophane

Floater

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Description
Locality: 
Zagradski Potok Mine, Zagradski Creek, Central Bosnia Canton, Federation of Bosnia & Herzegovina, Bosnia and Herzegovina
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.3 × 3.8 × 1.5 cm
Largest Crystal: 
4.00cm
Weight: 
26.00gr
Description

The specimen comes from the World's far best locality for hyalophane, Busovača, discovered in the mid of 1950' during prospections for optical quartz. The largest crystals of hyalophane measure up to 23 cm with the largest specimen found in 2009 during the dam construction. Since 2013, when the local community built a water dam on the hyalophane locality, access is not possible anymore.

The specimen is an example of hyalophane 'Faden' crystal, that forms during opening the Alpine-type fissures. Such crystals are elongated along some non-crystallographic direction that gives them an unusual shape with lath-form domains that form in the later stage of growth. More about the morphology of hyalophane and quartz from Busovača can be seen in crystallographic studies by my colleague Dr. Mirjan Žorž in Mineralien Welt 2016/3, 2017/3 and 2017/4.

Mineral Data
What's on the rock

Seller Information

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Seller's terms and conditions

Upon auction close, you will be sent an invoice indicating final value of the specimen. Payments must be made within 7 days of auction close. If you would like your package held for any reason please inform us when you prefer the shipment to be made, and we can make an arrangement.

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If are not happy with your purchase, we accept a return. You have a 10-day approval and right to return a specimen(s). Please notify us immediately, and send it back within the 10 days after the receipt. Once it has been received in the condition it was sent we will arrange a refund. If an item is not back with us after 15 days, it will be assumed that you are intending to keep the specimen and the transaction will become final.

For details see the e-rocks Terms and Conditions policy.