Bush or coral?
This sample comes from the old pyrite mine of Preguiça (Alentejo) and it is made of aragonite (calcium carbonate, Ca CO; It was formed like a stalactite, by calcium carbonate precipitation, from the groundwaters.
Bush or coral?
This sample comes from the old pyrite mine of Preguiça (Alentejo) and it is made of aragonite (calcium carbonate, Ca CO; It was formed like a stalactite, by calcium carbonate precipitation, from the groundwaters.