Himalayan Crystal Quartz Clusters / 1-4" AVG - 1 KILO LOT Menu stud/post earrings The resulting temperature shock causes

The resulting temperature shock causes small fractures to form inside the quartz

and the green color comes from trace amounts of chromium trapped in the crystal

or manganese

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Average size range: 2 to 4 inches

Himalayan Crystal Quartz Clusters / 1-4" AVG - 1 KILO LOT Menu stud/post earrings The resulting temperature shock causesQuantity: 1 kilogram Average size range: 1 to 4 inches 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 rock crystal and white quartz, the latter taking its color from very small inclusions of fluid or gas while it formed.