Euchroite (old classic - Type Locality) Kay Robertson Coll.

Svatodusna deposit, Lubietova, Banska Bystrica Region, Slovakia
Thumbnail, 1.2 x 1.1 x 0.7 cm
Start Time: 04/06/2017 6:30:00 pm (CDT)
End Time: 04/13/2017 6:35:56 pm (CDT)
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Item Description

Euchroite is a rare secondary copper arsenate and this historic locale is the Type Locality. This outstanding thumbnail is an exceedingly sharp, lustrous, equant, octahedral-looking, orthorhombic crystal with rich emerald-green color. Old-time material from Kay Robertson # 9110, a prominent California collector, who specialized in European classics (see article in the March-April, 2007 Mineralogical Record).

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