Feb
12
Scapolite
The scapolites are a group of rock-forming silicate minerals composed of aluminium, calcium, and sodium silicate with chlorine, carbonate and sulfate. Named in 1800 by José Bonifácio de Andrada e Silva from the Greek ζκαποζ meaning “a shaft” in allusion to the long prismatic habit of the crystals. Scapolites can be seen in a wide […]