1.7" Polished Brecciated Green Dolomite Hearts - California

These are polished hearts made from brecciated green dolomite collected in California. They are hand crafted from natural stone, so there will be some slight variation in size, pattern, and color from specimen to specimen. They measure 1.6" to 1.7" inches wide, with most being 1.65". The pictures are representative of the specimen(s) you will receive

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Dolomite is an anhydrous carbonate mineral composed of calcium magnesium carbonate (CaMg(CO3)2).

The mineral dolomite crystallizes in the trigonal-rhombohedral system. It forms white, tan, gray, or pink crystals. Dolomite is a double carbonate, having an alternating structural arrangement of calcium and magnesium ions. It does not rapidly dissolve in dilute hydrochloric acid as calcite does. Crystal twinning is common.

Dolomite was first described by Carl Linnaeus in 1768, and in 1791 it was described as a rock by the French naturalist and geologist Déodat Gratet de Dolomieu. He first recognized the material in buildings of the old city of Rome, and later as samples collected in the mountains known as the Dolomite Alps of northern Italy.

"Breccia" or "brecciated" is the term for rock that has been shattered by geologic forces and later cemented back together by means of percolation and solidification of mineral-rich solutions.

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