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Obsidian Mocca
Obsidian alias volcanic glass is a material with a unique formation, during which hot lava cools rapidly, e.g. in water or on the surface. The process is so fast that the individual minerals do not have enough time to crystalize. This piece is from Mexico.
Stone´s uniqueness: Mocca obsidian is a charming, brown-black variety of obsidian. The stone is a result of a merge of two, chemically different, lava varieties. One of these lavas was richer in ore microlites, iron and manganese – which is why mocca obsidian has beautiful black spots.
Special conditions/ treatment: Obsidian is stable against most acids. However, be careful when handling with the stone, as it is fragile.
About the product: Stone has been smoothed out into a round flat shape. We sell smooth stones in 1 kg package; however some of them are available also in 0,5 and 0,25 kg variant.
Stone´s uniqueness: Mocca obsidian is a charming, brown-black variety of obsidian. The stone is a result of a merge of two, chemically different, lava varieties. One of these lavas was richer in ore microlites, iron and manganese – which is why mocca obsidian has beautiful black spots.
Special conditions/ treatment: Obsidian is stable against most acids. However, be careful when handling with the stone, as it is fragile.
About the product: Stone has been smoothed out into a round flat shape. We sell smooth stones in 1 kg package; however some of them are available also in 0,5 and 0,25 kg variant.
