Copper Heart 1 1/2" - large Sage This is a polished specimen

This is a polished specimen featuring pale blue-gray

10 carat diamonds

Aquamarine is a blue-green variety of the mineral beryl and can form in very large crystals

Moroccan agates come in a wide variety of colors and patterns

and was called pietra dura

Copper Heart 1 1/2" - large Sage This is a polished specimenMichigan's Keweenaw Peninsula is considered the most important locality in the world for pure native copper Mining began in 1845 and continued through 1982, and over 7 million tons of refined copper were recovered from the mines. At the turn of the 20th century it led the world in copper production and "Lake Copper" was the purity standard. The chemical symbol for copper is Cu. Shiny copper heart 2" wide