Tumbled Milky Quartz / 20-40mm AVG - 1 LB. LOT Jewelry Chalcedony is a silica-based mineral

Chalcedony is a silica-based mineral composed of very finely-woven growths of moganite and quartz

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Average size range: 1

Tumbled Milky Quartz / 20-40mm AVG - 1 LB. LOT Jewelry Chalcedony is a silica-based mineralQuantity: 1 pound Average size range: 20 to 40 millimeters Quartz is one of the most common minerals found in the Earth's crust, and takes on a variety of colors depending on the other minerals and trace elements that are included as it forms and grows. These pieces are formed primarily of white quartz, which gets its color from very small inclusions of fluid or gas that mixed with the stone while it formed.