Michigan Made of Rocks
Our rock and mineral group does a Rock, Gem & Mineral Show every October. At the Kid’s Corner, we […]
Petoskey Stones
- 02A – Sulfides
- 02F – Arsenides
- 03 – Halogenides
- 05A – Carbonates
- 06 – Borates
- 07A-C – Sulfates
- 07E-G – Molybdates
- 08B-C – Arsenates
- 09 – Silicates
- 09A – Neosilicates
- 09B – Sorosilicates
- 09C – Cyclosilicates
- 09D – Inosilicates
- 09E – Phyllosilicates
- 09F – Tectosilicates
- 10 – Mineraloids
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Petoskey Stone
I gave a pared-down version of this presentation on the Petoskey Stone, Michigan’s state stone, to the Ozark Mountain Gem […]
Gallery of Petoskey Stones
These are pictures of some of my Petoskey Stones. All images in this gallery are the property and copyright © […]