A crystal of flourite, that has the shape of a regular octahedron.The image appears in the...
We find the cubes in nature, for example, in a crystal of cubic pyrite. The image has been...
Two flourite crystals, with the shape of regular octahedra.
Suggestions of symmetry from this photo of the vitamin C (ascorbic acid) under a microscop...
Suggestions of symmetry from this photo of the vitamin C (ascorbic acid) under a microscop...
minerals