LELAND BLUE

Leland Blue stone is not actually a stone at all — it's an industrial glass called slag, the remnants of an iron smelting operation by the Leland Lake Superior Iron Company more than 100 years ago. 
Leland Blue is an industrial waste known as slag that resulted when molten products in the Leland Lake Superior Iron Company's furnaces were quickly cooled, creating a glass-like solid in much the same way that the volcanic glass called obsidian is made. 
Northern Michigan was known for its iron ore and mining industry, which is just how this slag has formed and created the beautiful Leland Blue Stone. 
The process, roughly described, is that during the mining of ore, it eventually gets heated to extreme temperatures and separated into iron ore and then other natural byproducts. From here, these other natural byproducts cool and mix and as a result, form slag, sometimes containing blue green colours. 

 

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Size is approx: Length 31 mm Width 21 mm Depth 6.6 mm The Cabochon weighs 7 gms You will recei..
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Size is approx: Length 32.8 mm Width 19.6 mm Depth 7.2 mm The Cabochon weighs 7 gms You will r..
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Size is approx: Length 33 mm Width 20.6 mm Depth 5.8 mm The Cabochon weighs 6 gms You wil..
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Size is approx: Length 33.9 mm Width 22.1 mm Depth 6.6 mm The Cabochon weighs 8 gms You w..
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Size is approx: Length 34.9 mm Width 20.8 mm Depth 6.9 mm The Cabochon weighs 8 gms You will r..
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Size is approx: Length 35.2 mm Width 23.3 mm Depth 6.3 mm The Cabochon weighs 8 gms You will r..
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Size is approx: Length 36.8 mm Width 13.1 mm Depth 6.5 mm The Cabochon weighs 5 gms You will r..
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Size is approx: Length 36.2 mm Width 18 mm Depth 8 mm The Cabochon weighs 8 gms You will recei..
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Size is approx: Length 37.6 mm Width 21.4 mm Depth 5.6 mm The Cabochon weighs 7 gms You will r..
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Size is approx: Length 40.6 mm Width 17.2 mm Depth 6 mm The Cabochon weighs 7 gms You will rec..
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Size is approx: Length 26.4 mm Width 26.1 mm Depth 6 mm The Cabochon weighs 7 gms You will rec..
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Size is approx: Length 26.5 mm Width 26.5 mm Depth 6.8 mm The Cabochon weighs 7 gms You will r..
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Size is approx: Length 26.9 mm Width 26.8 mm Depth 6.9 mm The Cabochon weighs 7 gms You will r..
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Size is approx: Length 27.6 mm Width 27.4 mm Depth 6.6 mm The Cabochon weighs 8 gms You will r..
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Size is approx: Length 30.3 mm Width 30.3 mm Depth 7.8 mm The Cabochon weighs 11 gms You will ..
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Size is approx: Length 30.3 mm Width 30.1 mm Depth 6.4 mm The Cabochon weighs 9 gms You will r..
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Size is approx: Length 26.3 mm Width 25.7 mm Depth 6.8 mm The Cabochon weighs 6 gms You will r..
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Size is approx: Length 27.1 mm Width 23.2 mm Depth 5.6 mm The Cabochon weighs 5 gms You will r..
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Size is approx: Length 28.1 mm Width 17.3 mm Depth 5.5 mm The Cabochon weighs 4 gms You will r..
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Size is approx: Length 28.2 mm Width 23.5 mm Depth 6.6 mm The Cabochon weighs 6 gms You will r..
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Size is approx: Length 33.1 mm Width 19.2 mm Depth 7.4 mm The Cabochon weighs 6 gms You will r..
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Size is approx: Length 33.9 mm Width 22.2 mm Depth 6.6 mm The Cabochon weighs 7 gms You will r..
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