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OBSN-R-01
Origin: Mexico
Grade: A
Dimensions:
Approximately 30-40mm
Obsidian is a volcanic rock rich in silica. Different kinds of obsidian exist, differing due to the rock's chemical composition. Obsidian is actually a natural glass, formed during a silica-rich lava eruption with less than 3% water. Upon exiting the volcano, it cools very rapidly, freezing the crystallization process.
This can be likened to a piece of lava suddenly solidified upon exiting the volcano. The direct consequence of this phenomenon is the impossibility for the rock to crystallize. The result is the creation of volcanic glass with a uniform texture, which is described as an amorphous mineral. Furthermore, obsidian has sharp edges and very fine blades. It is a natural mineral with a complex composition. Thus, obsidian is essentially composed of silicon dioxide, about 70% or more. Its fracture is conchoidal (i.e., grooved with curved and concentric striae) and its hardness is 5 to 5.5 on the Mohs scale. It has different colors and reflections due to the volcano where it was discovered and its various inclusions. It should be noted that each deposit, linked to a volcano, provides a different obsidian. Green, brown, gray or black, it can have sometimes golden, silver, or even rainbow-colored reflections (an effect produced by the presence of hematites or magnesites). Sometimes, two colors of obsidian also mix. This is pure and basic obsidian. Composed of more than 70% silica, its beautiful dark color is due to the presence of iron. It has almost no inclusions except for a few magnetite nanoparticles. During archaeological excavations, tools and weapons made of black obsidian are often discovered. The legend of young Obsid highlights the discovery of an extremely sharp black obsidian on the ground. Black obsidian is a smooth, shiny stone, similar to glass due to its brilliant and reflective surface. This stone can break into fragments with curved edges. This characteristic is ideal for making cutting objects. Nowadays, black obsidian is frequently used in the manufacture of jewelry and ornamental objects. This stone has powerful benefits in lithotherapy.To learn more about this stone and its properties, visit our page dedicated to black obsidian. You will also find our black obsidian tumbled stones there.
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Black obsidian pebble Mexico A
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