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Let's Rock => Identifications of Materials => Topic started by: mearic71 on February 07, 2021, 11:46:50 AM

Title: Old collection Part2
Post by: mearic71 on February 07, 2021, 11:46:50 AM

3 more.

4.   Native copper or silver? Has shiny copper spots and shiny silver spots. Collection came with native Michigan copper, but is much cleaner looking.
5.   No clue, many different crystals.
6.   Calcite with green crystals, are the green crystals just green calcite?

Some of the samples in collection came from England. Hope clues help.
Thanks Mike

Title: Re: Old collection Part2
Post by: mearic71 on February 07, 2021, 11:48:08 AM

one more pic.

Title: Re: Old collection Part2
Post by: Felicia on February 07, 2021, 07:40:10 PM

Copper from Michigan sometimes has silver included with the copper in varying amounts.