0.00 $

0 item(s)

In natural environments regular polyhedra can be found in the form of crystals (minerals).

Sodium sulphate reminds the shape of tetrahedron.

Even a rough diamond clearly reflects the shape of octahedron. After the grinding this mineral corresponds accurately to the geometric shape of an octahedron.

Spinel. Its name comes from a Latin word "sp'inella", which means "a small thorn".

Cube. The single crystal combines several crystals of salt NaCl.

A crystal of pyrite (sulfur pyrite FeS) has the shape of a dodecahedron. Pyrite (from the Greek. "pyr" - fire) is an iron sulfide or iron pyrite; it is the most common mineral from the group of sulfides. Some pyrite crystals may reach a few centimeters.

Boron has the shape of icosahedron.

One can specify the following mathematical characteristics in each of the five Platonic solids: 1....

Is it possible to make up an icosahedron using more simple polyhedra?

Summer is the time that you want to spend outdoors. Children will sit at the desk in September,...

Quite often a question about a practical use of paper models pops up. What is the point of paper...

The founders of the town called Mirniy, situated in Russia in Arkhangelsk region, put an image of...

Stamps cover all significant events happening in the world. Much attention was paid to polyhedra...

In natural environments regular polyhedra can be found in the form of crystals (minerals). Sodium...