Tumbled Petal Agate 20 to 30 mm Menu Coasters These crystals take on a

These crystals take on a light yellow to dark brown hue depending on the amount of heat used and the duration this heat is applied

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composed mainly of a blue mineral in the sodalite family called lazurite with inclusions of pyrite and white calcite

Sunstone is formed through the slow cooling of molten plagioclase feldspar in volcanic rocks

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Tumbled Petal Agate 20 to 30 mm Menu Coasters These crystals take on aUniqueness Guaranteed: Every item is one of a kind, making them ideal for all projects or designs. Average size range: 20 to 30 millimeters (The cube in the picture is 1 inch) Like all agates, Petal Agate is a microcrystalline variety of chalcedony, a form of quartz. The petal like formations within the agate are caused by mineral inclusions such as iron oxides, manganese, or other trace elements. Custom Requests: Have specific preferences? Leave a