CAL105 Fluorescent Calcite Sift & Sorts Mexico They are each roughly

Mexico They are each roughly the same size and all have darker veining over Robin's Egg blue with slight changes to a bit greener shade

This polished cabochon is made from Turkish Dendritic Opal

6" polished surface

This Coyamito Agate polished specimen features an arc of epimorphs created from spikey crystals

CAL105 Fluorescent Calcite Sift & Sorts Mexico They are each roughlyThis calcite rhomb has naturally straight sides created from its distinct cleavage properties. The rhombohedral formation produces double refraction, which is why this material is also known as Optical Calcite. When you look at objects through the calcite, it splits the rays of light and displays two images of the same object. This piece is a gemmy, translucent peachy pink, which is a result of the presence of manganese within its chemical makeup.