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
Gypsum forms concretions of selenite blades called desert roses or sand roses, growing in sediments that are subjected to concentrated brines.
Gypsum forms concretions of selenite blades called desert roses or sand roses, growing in sediments that are subjected to concentrated brines.
Gypsum is a soft mineral, hydrous calcium sulfate. Gypsum is the standard for hardness degree 2 on the Mohs mineral hardness scale.
This is a nice little piece of clear Gypsum, also known as Selenite.
If you look at this very nice hematite, you will see my hand and camera reflected. That is how shiney this hematite is.
Unfortunately in order to show the great crystal structure in the picture I had to sacrifice showing the amazing shine covering the entire piece. ...
This Piece of Hematite Pseudomorph after Magnetite is in amazing condition.
The hemimorphite from this location are well known for their delicate clear crystals that form beautiful sprays on the limonite matrix.
Location: Mapimi, Mexico
This is a nice specimen from the classic location at Mapimi, Mexico. The rosasite really adds nice color and contrast and displays well.
This is a very cool piece. The iridescence takes place on the defined octahedral crystals, but on the base, where the contact was, it is the usual ...
Jeremejevite is listed as one of the 10 rarest stones on the earth.
This is an amazing gem crystal of kunzite that shocked me when I first saw it, because it is as clear as glass - not silky like most kunzites, but ...
Each piece of Kyanite is similar to the ones pictured. Kyanite is a polymorph with two other minerals; andalusite and sillimanite.
THIS IS 33% off the original price. A classic from the yukon. Minimal contact damage only with good crystals.
Location: Mina Huaquio, Potosi, Bolivia
This is a really sharp specimen! It is very clean and sweet. Really nice pieces from this this location are getting harder to find with great quality.
