Hanna Meijer
More ideas from Hanna
Aragonite / Minglanilla, Spain <3

Aragonite and the more common mineral Calcite are polymorphous to each other. Although Aragonite and Calcite contain the same chemical composition, they differ in crystal structure.

Realgar (an arsenic sulfide mineral, also known as "ruby sulphur" or "ruby of arsenic"):  ruby-red crystals in translucent Calcite scalenohedrons

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.