Barite with Calcite (ex Kay Robertson Collection)

Item Description

An old classic from Freiberg featuring "rosette"-esque groups of bladed off-white Barite crystals associated with reddish (iron-stained) Calcite crystals showing both rhombic and prismatic habits) on host rock matrix. The largest individual Barite blade measures about 8 mm, and the Calcites measure up to about 3-4 mm. A nice combo piece from one of the most storied localities in all of Europe. Ex Kay Robertson Collection (#10029). Kay was a prominent California collector, who specialized in European classics. She nearly lived 100 years from April 1920 - March 2020. See the article in the March-April, 2007 Mineralogical Record ( https://www.mineralogicalrecord.com/pdfs/Kay%20Robertson%20Collection.pdf ), and the 50+ page article in the German Magazine "Mineralien Welt" November-December 2017.