Mahogany Obsidian Natural Volcanic Glass
The colour of mahogany obsidian comes from iron oxides, usually hematite or limonite. One of the most common iron oxides is rust.
Obsidian is molten magma that cooled too rapidly for crystals to grow. Where crystals are present, they're microscopic. For this reason, obsidian is classified as a mineraloid.
One renowned geologist described obsidian as a congealed material with minor amounts of microscopic crystals and other rock impurities.
Like other types of glass, it breaks with a conchoidal fracture because it lacks a crystalline structure. The presence of crystals would cause the edges to be more jagged.
Mahogany obsidian is also known as red obsidian.
Being relatively soft and fragile, obsidian tumbled stones can sometimes have minor imperfections.
Our mahogany obsidian crystals are a medium-sized stone, but size can vary from piece to piece.
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Mother of Pearl
