|
Chemical formula
|
KAl(SO 4 ) 2 ·12H 2 O |
|
Crystalline system
|
Cubic |
|
Class
|
Sulfates |
| Origin | Mohenjo-Daro, Pakistan |
| Size |
Medium: 3.00-4.00 cm Large: 4.00-5.00 cm |
natural alum.
Alum is a mineral that is obtained from a magmatic rock and occurs in nature in the form of a crystal. There is no industrial production of this compound.
Among its many uses, it is used to clarify cloudy water by placing it in filters where currents pass. It is used in the manufacture of paper and antiperspirants. In medicine, it causes bleeding to stop, since it causes cauterization of the vessels and, in turn, fibrosis of the mucosa.
Its use extends to many issues, but the truth is that its antiseptic properties are the best known. This is how it has become one of the most important natural deodorants that exist, among other jobs that are given to it. It is also used in some cultures as a preservative.
The piece you receive may differ slightly from the photo shown as the minerals are natural and no piece is identical. The size is approximate.