The MN State gem: Beautiful Lake Superior Agates - found on both north (MN) and south (WI) shores of Lake Superior. - Agates are semi precious stones so common on Lake Superior beaches no one pays much attention. #MSPdestination

The MN State gem: Beautiful Lake Superior Agates - found on both north (MN) and south (WI) shores of Lake Superior. - Agates are semi precious stones so common on Lake Superior beaches no one pays much attention. #MSPdestination

Lake Superior Agate another eye agate. Never polish agates they are worth more in the raw

Lake Superior Agate another eye agate. Never polish agates they are worth more in the raw

Fairburn Agate, credit: Tom "Captain Tenneal" Shearer Read more at http://www.geologyin.com/2016/02/how-do-agates-form.html#7WklpDuWpKlyD5s2.99

Fairburn Agate, credit: Tom "Captain Tenneal" Shearer Read more at http://www.geologyin.com/2016/02/how-do-agates-form.html#7WklpDuWpKlyD5s2.99

Uncut Lake Superior Agate--you have to know what you're looking for, that's for sure! It helps to wet it and hold it up to the sun for any translucency.

Uncut Lake Superior Agate--you have to know what you're looking for, that's for sure! It helps to wet it and hold it up to the sun for any translucency.

Sliced and Polished Fossil Petrified Agatized Eocene Pine Cone Morocco 2 pcs.

Sliced and Polished Fossil Petrified Agatized Eocene Pine Cone Morocco 2 pcs.

Copper Replacement Agate cabachon : Many of the larger copper agates are too fractured from the mining process to cut a cabachon.  This magnificent one wasn't. The dark inclusion in the upper center appears to be dense plumes of tenorite, the black copper oxide.

Copper Replacement Agate cabachon : Many of the larger copper agates are too fractured from the mining process to cut a cabachon. This magnificent one wasn't. The dark inclusion in the upper center appears to be dense plumes of tenorite, the black copper oxide.

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