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.

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

What is the relationship between an octahedron and a cube?

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

What does the dodecahedron and icosahedron have in common?

A new and unusual way of making a model of Stellated polyhedron was discovered by a German...

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

The Lighthouse of Alexandria, one of the Seven Wonders, was built in the 3d century BC in an...