Massive colorless Halite.
Halite, salt or rock salt is a sedimentary mineral, a type of salt, which is the (natural) mineral form of sodium chloride (NaCl). It is usually colorless or white, but can also be light blue, dark blue, purple, pink, red, orange, yellow, or gray, depending on the inclusion of other materials, impurities, and anomalies in the crystals.
Some of its most common uses are seasoning food, it is also used in road safety to melt snow and ice from the road and for medicinal purposes.
The mineral includes a label with the name and origin and is attached to a cardboard box. 4 cm square.
*The price is per unit (a single cardboard box of the four shown in the photo)
Since the minerals are natural, you will receive a piece similar to the one in the photograph. The minerals come in cardboard boxes and are glued to a porex base with hot silicone; these can be removed using ethyl alcohol without damaging the mineral. The size is approximate.