04-23

04-23. Garnet #1.

Just in time to celebrate Earthday weekend – a bouquet of garnets!

341 atoms, 538 bonds, 99 polyhedra went into the structure of that feisty little mineral.

Garnet will be the mineral of week #17 in this 52 weeks tour of the geometry of nature. Garnet is a set of closely related minerals – more than twenty categories that result in gemstones in almost every color. Their crystal belongs to the cubic system, built around three axes that are all of equal length and perpendicular to each other.  

Last January, I explored a rhodonite crystal, one of the subcategories of the garnet family. This time I’ll look into the generic structure of the mineral.

Garnets can be found all over the world. Some carved ones were found in the former Czechoslovakia or Egypt as far back as the Bronze Age. They were used in Sumer as well as Sweden before 2000 B.C. Native American Indians, South American Indians, Aztecs, and Mayans used it as a sacred stone.

This first visualization was extracted from a resource by Fujino, Momoi, Sawamoto and Kumazawa.

04-23

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04-22

04-22. Olivine #7.

1,403 atoms, 2,628 bonds, 490 polyhedra! The polyhedra setting makes for a splendid background pattern. I also included the full olivine structure as little cubes on a shelf.

Resource from Muller-Sommer, Hock and Kirfel.

04-22

04-20

04-20. Olivine #5.

The color and texture of this visualization remind me of a project I worked on a few years ago called Martematica. Maybe this olivine is coming from a meteorite or is a fragment of the planet Mars that landed here?

The resource from Muller-Sommer, Hock, and Kirfel does not mention the origin of the crystal.

04-20

04-19

04-19. Olivine #4.

Olivine is a complex and mysterious crystal. The dance of its atoms in the structure is inspiring and quite pretty to look at!

From a resource by Muller-Sommer, Hock & Kirfel.

04-19