Best sellerGreat Lakes Fossils and Stones
Forty-eight stones and fossils off these beaches, every one a real specimen, sorted by how hard it is to find. Good in a cabin, a rental or a classroom.
$19.99 · 18″ x 24″
Both posters
$30
Best seller
NewLake Superior Agates
Twenty-four kinds of Lake Superior agate, every one a real stone photographed by Bob Wright. Fortifications and water-levels up top, copper agates at the bottom.
$19.99 · 18″ x 24″
FreeGreat Lakes Mohs Hardness Chart
All forty-eight sorted by what scratches them, a steel nail to glass, with a Mohs ruler and the agate or beach glass test.
Free download · 18″ x 24″ print file
Download the PDF, free
FreeMohs Hardness Chart, actual specimens
The same four scratch bands and the same Mohs ruler, every stone a real specimen photographed on Higgins Lake.
Free download · 18″ x 24″ print file
Download the PDF, free
The two posters print to order and ship flat, usually within a week. The two hardness charts underneath are free: download the print file and take it to any print shop, or just keep it on your phone.
