|
Chemical formula
|
Mg 3 Si 4 O 10 (OH) 2 |
|
Crystalline system
|
monoclinics |
|
Class
|
silicates |
| Origin | Lillo, Leon, Spain |
| Size | 2.0-3.0cm |
Massive white or black Talc with the typical silky touch of the mineral.
On the Mohs Scale, talc is one of the main standards for measuring the hardness of minerals, ranking first as the softest mineral.
In its most common use, talc is used in the manufacture of paper and cardboard, for lacquers and paints, in the ceramic industry and as an additive for rubber and plastics. Due to its resistance to high temperatures, it is used in the manufacture of heat-resistant materials.
One of its best-known uses is as a powder to prevent skin irritation and moisturize it.
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.