Infinite photos and videos for every Wiki article · Find something interesting to watch in seconds
History
Page
Corundum
Corundum
Corundum from Brazil, size about 2 cm × 3 cm (0.8 in × 1 in)
Corundum from Brazil, size about 2 cm × 3 cm (0.8 in × 1 in)
Page
Crystals of amethyst quartz
Crystals of amethyst quartz
Macroscopic (~16 cm) halite crystal. The right-angles between crystal faces are due to the cubic symmetry of the atoms' arrangement
Macroscopic (~16 cm) halite crystal. The right-angles between crystal faces are due to the cubic symmetry of the atoms' arrangement
Ice crystals
Ice crystals
Fossil shell with calcite crystals
Fossil shell with calcite crystals