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.
Location: Mapimi, Mexico
The hemimorphite from this location are well known for their delicate clear crystals that form beautiful sprays on the limonite matrix.
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.
If you look at this very nice hematite, you will see my hand and camera reflected. That is how shiney this hematite is.
This is a nice little piece of clear Gypsum, also known as Selenite.
Gypsum is a soft mineral, hydrous calcium sulfate. Gypsum is the standard for hardness degree 2 on the Mohs mineral hardness scale.
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.