SDL106 Lake Superior Sodalite Natural Specimen Books This Pyrite cube in Marl

This Pyrite cube in Marl Matrix is from Navajún

Malawi Agate polished cabochon featuring white banded agate

the area is still considered "Copper Country" and float copper

sometimes with hints of red or pink

It also protects the motor by slowing down the cutting when necessary and prevents it from heating and burning

SDL106 Lake Superior Sodalite Natural Specimen Books This Pyrite cube in MarlThis natural pebble is Sodalite rich Syenite from Lake Superior that is mostly gray with black and pinkish speckles. Under UV light, it shows bright yellow orange fluorescence. Pictured in regular lighting and under 365nm UV light (fluorescence also displays under typical longwave 395nm). Similar to Lake Superior Agates, these pieces are most often found naturally tumbled from their geological displacement, and are typically kept by collectors in