Aquamarine

Aquamarine is so named because of its seawater color. A dark blue is the most desired color. The coloring agent is Iron. Lower quality are heated to 725-850 degrees F(400-450 degree C). Higher heats leads to discoloration. 

Aquamarines require no special care. They can resist the rigors of everyday wear very well. However, inclusions within aquamarines may not react well to mechanical cleaning techniques like ultrasound or steam, increasing the risk of shattering. 

Santa Maria, Santa Maria- Africana, Maxixe

Deposits are found in Brazil, spread through the Country. 

Synthetic aquamarine sold in the trade is actually Aquamarine colored synthetic Spinel.