Fluorite, cleavage (8 -11mm) in the form of a regular octahedron. China

Cost per piece with no choice.

Octahedron edge dimensions: 8 - 11 mm
The weight of the crystals is from 1,1 to 2,5 grams
With a choice according to your parameters: color, size, selection of a "pair" or "three", the cost per unit is 100 rubles.

The color of the octahedra is green, blue, purple or dark blue with a greenish tinge, or light green, etc ... bright, saturated, with good translucency.

The color of the mineral may slightly differ from the declared one (brightness, color saturation), it depends on the settings of your monitor, display.

Minerals with perfect cleavage, such as fluorite, split in several directions, while all chips are smooth. You can also see the same cleavage in different minerals - galena, calcite, dolomite, halite, etc.
Cleavage is the ability of minerals to crack and give when splitting a flat surface.

Cleavage gouges - this means that the mineral is impaled by cleavage - that is, the ability inherent in nature in its crystal lattice.
In fluorite, this ability is perfect in 4 directions. Dig fluorite in the form of a clear right of octahedra (by analogy with the spinel crystal or diamond).