This Specimen has been sold.
4.85" Intense Orange Calcite Crystal Cluster - Poland
This is a 4.85" wide cluster of sharp orange calcite crystals on basalt. This comes from the Grabiszyce Basalt Quarry in the Luban District of Poland. Under short and long wave UV, these crystals fluoresce a white-orange color.
Comes with an acrylic display stand.
Comes with an acrylic display stand.
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.
SPECIES
Calcite
LOCATION
Grabiszyce Basalt Quarry, Lesna, Luban District, Poland
SIZE
4.85 x 3.35 x 2.1"
CATEGORY
ITEM
#302239