Obsidian - Rocks in a Box 32

I have a couple boxes of various types of obsidian to show you, plus some rough obsidian so you can see how it looks before tumbling.

Obsidian on Mindat: https://www.mindat.org/min-8519.html
Rainbow obsidian: https://www.mindat.org/min-27158.html
Conchoidal fracturing: https://en.wikipedia.org/wiki/Conchoi...

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– KINGSLEY NORTH –
Kingsley North is a lapidary store in Michigan's U.P. They make a great cab machine and sell many other brands too. They have a huge selection rough rock, tumblers, grit, jewelry supplies etc. at good prices. I buy most of my coarse grit from here in 45 lb. bags. It's the best price I have found. If you buy using the following link, I make a small commission.
http://bit.ly/3MerxdI

This is the cabbing machine I use:
https://kingsleynorth.com/kingsley-no...

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I buy a lot of lapidary supplies from The Rock Shed. I don't make money from your purchases there, but they have good prices and good service. This is where I buy my finer grits and polish.
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