A crystal or crystalline solid is a solid material whose constituents, such as atoms, molecules or ions, are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions. In addition, macroscopic single crystals are usually identifiable by their geometrical shape, consisting of flat faces with specific, characteristic orientations.
Each piece of Kyanite is similar to the ones pictured. Kyanite is a polymorph with two other minerals; andalusite and sillimanite.
This is a pale blue, etched termination from Brazil. It is very interesting and a beautiful piece.
The Neptunite on this specimen is the most noticeable thing on here.
Benitoite is 1 1/4"" Thumbnail Benitoite crystal specimen is a very deep navy blue color. IT is in the typical Ditrigonal Dipyramidal crystal shape ...
These Benitoite crystals are not only in great condition, but they are so close to gem quality its ridiculous!
Location: Miraflores Mine, Huanuco, Huamalias, Peru
These Barite crystals are a solid white color in blade form. There is some contact damage but other than that all of the crystals are in great ...
Location: Miraflores Mine, Huanuco, Huamalias, Peru