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.
CRYSTAL CATEGORIES
CRYSTAL
It really is Kyanite! It looks completely different than the blue or green, but it is still the Kyanite we love.
Quartz (silicon dioxide) is the most abundant single mineral on earth.
These Quartz with Hedenbergite are great little specimens. They are only found in this specific location in Greece.
These Quartz with Hedenbergite are great little specimens. They are only found in this specific location in Greece.
This specimen has some great character to it. Each of the three Pyrite pieces are not just single crystals.
Location: Zinc Corp of America W. Pierrpont mine, W. Pierrpont, St. Lawrence Co., New York
These Pyrite crystals are in amazing condition.
