Leland Slag Post Earrings 084

These perfect Leland Blue posts need to be seen. They are slightly translucent and have an iridescent shine. In every different light, the color of the stone flashes hues of pink, corral, and periwinkle blue. You will love them.

Leland slag is not really a true gem, nor is it sea glass. It is in a category all its own. Truth is, Leland Slag is byproduct of smelting iron-ore, which is no longer done. It is waste, tossed aside into Lake Michigan, never to be seen again, until now. 145 years later, it's a beautiful stone that has earned a spot in my lineup. Read the nerdy, yet necessary, natural history below.

LELAND BLUE (ANTIQUE FOUNDRY GLASS) c. 1875-1900
This unique “gem” is a byproduct of the short-lived days of smelting iron ore in Northwest Lower Michigan. The ore from the Upper Peninsula’s Mesabi iron range arrived in Leelanau County by schooner. A charcoal made from beech and maple hardwoods plus a local limestone flux were used to refine the ore; the slag byproduct was considered waste and dumped into Lake Michigan.

This material ranges in color from black to green, to blue and purple, with the various shades of water-like blues being the most prized and rare. Under 2% of the slag created was blue, depending o