Siljan impact crater, Sweden (age : approx. 376m years, Devonian period, diameter : 52km)
The SIljan crater is part of a massive structure called "The Siljan RIng" which is one of the world's largest impact craters at over 32 miles wide. Scientists associate this impact with the so-called "Kellwasser Event" that touched off the first Devonian mass extinction of species. Specimens from this locality are uncommon on the collector market.
The specimen offered here is a thick rectangular slab that weighs 112 grams.
Refer to the photos. The black centimeter cube is shown for scale and is not included. You are purchasing the specimen shown. Your purchase will include an ID label.
