Aragonite is a carbonate mineral, one of the two common, naturally occurring, crystal forms of calcium carbonate, CaCO3 (the other form being the mineral calcite). It is formed by biological and physical processes, including precipitation from marine
Dubbed the world's #largest '#flawless' #diamond of its type - World’s largest D colorless diamond at 101.73 carat. The diamond was carved from a 236-carat rough diamond found in Jwaneng Mine in Botswana.
The Hoopoe (Upupa epops) is a colourful bird that is found across Afro-Eurasia, notable for its distinctive 'crown' of feathers. Common Hoopoe (Upupa epops) Grzegorz Ryński