Polished Concentric Thomsonite
Collection
John Betts - Fine Minerals
Description
Nodule of green-to-pink Thomsonite
polished
to show the many
concentric
growth patterns. The green color is caused by
Chlorite
inclusion
s.
Locality
Thomsonite Beach, Grand Marais, Cook County, Minnesota
Dimensions
28 x 18 x 15 mm.
Photograph
© www.johnbetts-fineminerals.com - All Rights Reserved.
Close
