Baryte & Calcite in Brachiopods (RARE Nebraska!) Robertson Coll.

Item Description

EXTREMELY RARE, perhaps unique pink barite blades and dogtooth calcite crystals line a cast of a Brachiopod from an obscure locality in southeastern Nebraska. The cast with the minerals is 18 x 13 mm. Other casts and shell fragments are visible on both sides of the limestone matrix. The Brachiopod species is Enteletes and is Late Pennsylvanian (Reading Limestone) in age, about 300 MYA. Ex Kay Robertson Collection and acquired from former prominent mineral dealer and then Geology college professor Scott Williams in 1982. Kay is a prominent California collector, who specialized in European classics (see the article in the March-April, 2007 Mineralogical Record and the 50+ page article in the German Magazine "Mineralien Welt" November-December 2017). This unique Nebraska mineral/fossil specimen comes with a copy of the 2 page, April 16, 1982 letter, that Scott wrote to Kay. Kay had a long client/mineral dealer relationship and acquired many specimens from Scott starting in the 1950s or perhaps earlier.