|CaSO 4 ·2H 2 O|
Crystallized red plaster.
Gypsum occurs in crystals, sometimes large, twinned in arrowheads and spearheads; also in masses and spatic aggregates.
It is a highly appreciated material in restoration, it contains few impurities and it is used to give the last finishing layer on the walls of buildings.
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.