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About Classic Boxed Specimens: Each specimen is unique and the pictures on this page are a representative sample of the whole
you'll adventure across billions of years of history
Catastrophes and Lesser Calamities : The Causes of Mass Extinctions
This particular specimen is a single amethyst cluster from Brazil
Tunguska Event - Surviving Tree Size:1908 Cross Section - Limited Edition About Classic Boxed Specimens: EachThe Tunguska Event is part of the First Edition collection. We are happy to offer it once again as a stand alone specimen! On June 30, 1908, the largest impact event in recorded history occurred over the skies of the Podkamennaya Tunguska River in Siberia. In an instant, a 12 megaton explosion leveled 80 million trees over an area of 830 square miles (2,150 sq km), and for nights after, the skies of Eurasia glowed with light. This specimen is a
