Orange Calcite 10mm Round AAA Grade - 15-16 Inch Shape_Square It is sometimes used for

It is sometimes used for scalpel blades in cardiac surgery

White Howlite is named for Canadian mineralogist Henry How

Like all Opals

Bronzite is a brown stone with a bronze to colored metallic luster due to iron deposits within the stone

Ocean Jasper is a commercial name for Orbicular Jasper

Orange Calcite 10mm Round AAA Grade - 15-16 Inch Shape_Square It is sometimes used forCalcite is a rock forming mineral that is extremely common and found throughout the world in sedimentary, metamorphic, and igneous rocks. Calcite is the principal constituent of limestone and marble. These rocks are extremely common and make up a significant portion of Earth's crust.