Calcite

This striking specimen comes from the famous Joplin Field, a renowned lead-zinc deposit where Oklahoma, Kansas, and Missouri meet. Known for producing world-class crystals, this region has yielded some of the finest Tri-State mineral specimens. This piece features a lustrous, gemmy scalenohedral calcite crystal—well-terminated and beautifully perched on a remnant of brecciated dolomitic limestone matrix. With no damage to speak of, it exemplifies the exceptional quality characteristic of the district’s finest calcites.

Likely recovered during mid-20th-century mining operations, this specimen is a true collector’s piece from one of America’s most historic mineral-producing regions.

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This specimen comes from the collection of Dr. Peter Tarassoff, a prominent figure in mineralogy, particularly known for his work at Mont Saint-Hilaire (MSH). His diligent collecting and examination efforts have led him to be the first to identify at least 35 species and discover 12 new species, not only at MSH but also at other alkaline localities. Dubbed the "Dean" of Mont Saint-Hilaire collectors, Peter was honoured with the naming of the new species petarasite in 1980. He has authored or co-authored numerous mineralogical articles and has been a member of the Mineralogical Association of Canada since 1964. Additionally, Peter has volunteered at the Redpath Museum for the past 21 years, where he was formally appointed the Honorary Curator of Mineralogy. In recognition of his significant contributions to mineralogy, Peter was awarded the 2017 Pinch Medal