Black Obsidian (grade B)

Black Obsidian Crystals Volcanic Glass

Grade-B, black obsidian tumbled stones from Mexico. These crystals have been given a lower grade because of inclusions or natural imperfections.

Impurities in obsidian are relatively common. The colour and type of sheen is often determined by the impurities present.

The grade or condition of a rock or mineral does not affect its metaphysical properties.

Obsidian, which is volcanic glass, forms from lava that cools and solidifies. The molten rock cools so rapidly that crystals don't have time to grow.

These finely polished black obsidian crystals are a medium-sized tumbled stone but size can vary from piece to piece.

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