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Ankerite w/ Sphalerite, PeruAnkerite w Sphalerite Huancavalica, Peru Ex. Greg Boles Collection 25 x 14 x 14 mm Mounted In A Standard Perky Box This mineral specimen is from the collection of Gregory Boles. Greg has had a lifelong passion for collecting minerals and other geological items. His hobby started at an early age in 1956 and continues to this day. Greg's enthusiasm for science led him to receive a BS in geology from the University of Kansas in 1987. He attributes all

Stone Origin - South Africa

This specimen displays bright red to red/orange hexagonal crystals of vanadinite

20 x 17 x 8 mm - Mounted In A Standard Perky Box

24 x 13 mm - Mounted In A Standard Perky Box

1 ounce (28 g) solid copper coins from Michigan

4cm and displays a nice translucent green/blue color

Monroe County

5 x 6 x 2 cm

29 x 14 mm - Mounted In A Standard Perky Box

Measures 2 x 3 x

This sardonyx sphere from Madagascar weighs 133 grams and measures 15 cm in circumference

"Ruby Jack" Sphalerite