Herkimer Diamond Druzy SOLD 3.30" Cluster on Dolomite decade-2024 This specimen is a sandstone

This specimen is a sandstone slab that has been imprinted with a manganese oxide dendrite in a branching pattern

82" slice of petrified wood from Arizona

She is also credited with being the first to recognize the importance of coprolites and had extensive knowledge of ammonites

Above: Closeup of the reverse side of the tile

75" along the widest point

Herkimer Diamond Druzy SOLD 3.30" Cluster on Dolomite decade-2024 This specimen is a sandstoneHidden among Upstate New York's dolostone formation is a stunning group of crystals called Herkimer diamonds. With their striking clarity and beautiful double terminated growths, Herkimer diamonds have been catching the eyes of humans since at least the sixteenth century. This specimen is a Herkimer diamond druzy formation, measuring 3. 30". It was mined in the famous Little Falls Formation, which remains the most prized site for the crystals on Earth.