1.5" Fluorescent Calcite Crystal Cluster - Morocco

This is a cluster of tightly packed, botryoidal-looking, wonderfully translucent yellow-orange calcite collected from Morocco. The cluster measures 1.5" at its widest point. Under shortwave ultraviolet light, the calcite crystals exhibit a vibrant blue-white fluorescence. The fluorescence is a faint greenish under longwave ultraviolet light as well, but it's not nearly as intense.

This specimen has been mounted to an acrylic display base.

Calcite, CaCO3, is a carbonate mineral and the most stable polymorph of calcium carbonate. The other polymorphs are the minerals aragonite and vaterite. Calcite crystals are trigonal-rhombohedral, though actual calcite rhombohedra are rare as natural crystals. However, they show a remarkable variety of habits including acute to obtuse rhombohedra, tabular forms, and prisms. Calcite exhibits several twinning types adding to the variety of observed forms. It may occur as fibrous, granular, lamellar, or compact. Cleavage is usually in three directions parallel to the rhombohedron form.
FOR SALE
$15
DETAILS
SPECIES
Calcite
LOCATION
Morocco
SIZE
1.5 x 1.45"
CATEGORY
ITEM
#289460