Realgar, ruby red crystal in translucent Calcite scalenohedrons <3

Gorgeous gemmy ruby red Realgar clapsed by translucent Calcite scalenohedrons, from Jiepaiyu Mine, China. Ruby is one of the four precious stones. The other three being Diamond, Sapphire, and Emerald.

Bismuth crystals.

Bismuth is a metal you can melt on your stove top, as it dries it forms these beautiful crystals. My father bought me some of the raw metal for Christmas several years back. Perfect for the science oriented home experimenter!

Golden Selenite

Golden Selenite from Peru Photo : the magic faraway tree; this is also an abundance crystal

Aquamarine with Schorl (black Tourmaline) and Albite.

Aquamarine with Schorl (black Tourmaline) and Albite. A very clear and flawless specimen.

Cirlce - from the Fractal Experience project.

Why do humans tend to prefer strict geometric design when nature seems to flow in a chaotic and organic way? "Fractal Experience" Visual Arts, Illustration, Photo Manipulation by Erik Söderberg (Uppsala, Sweden).

The image is a scanning electron microscope (SEM) image of bird bone.

bird bone : max strength-to-weight ratio developed since the early days of the dinosaurs : scanning electron microscope (SEM) .

regenbogen Edelstein

The range of colours shown by fluorite is equaled by few other gemstones. It may occur in beautiful cubic crystals or as a massive crystalline variety displaying banded or radiating patterns. Although the stone is somewhat soft for use as a normal.