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Copper from Keweenaw Peninsula, Laker Superior, Michigan

Copper from Keweenaw Peninsula, Laker Superior, Michigan in Online Mineral Museum

Lake Superior Agates - what beauties- fun to find on gravel roads of northern minnesota - just have to stop and walk!

/ beautiful lake superior agate / fun to find on gravel roads of northern minnesota / just have to stop and walk /

Lake superior amethyst eye agate

Lake Superior Agates, Grand Marais Michigan, Michigan Facts, Earth Science, Petoskey Stone, Rock Hunting, Crystals Minerals, Gem Stones, Geology

Lake Superior agate

Superior sunrise Rusty making breakfast Shadows on the beach Great roots!

My first Lake Superior Agate found on the beach at Black River Harbor near Ironwood, Michigan. Unfortunately some mistakes in tumbling resulted in some ...

Lake Superior Agate found on the beach at Black River Harbor near Ironwood, Michigan. Unfortunately some mistakes in tumbling resulted in some .

Leland Bluestone: mix of blue glass and other chemicals can also appear purple, gray, green. "From 1870 to 1885, Leland was a smog-filled industrial town... anchored by the Leland Lake Superior Iron Company. After the smelting industry failed,... heaps of slag, were dumped into the harbor. Slag is a byproduct of the smelting process: raw ore is heated, and the desired iron ore is separated from various natural impurities. When those impurities cool, the result is stone-like slag.MyNorth.com

Leland Bluestone: mix of blue glass and other chemicals can also appear purple…