The olivine mineral family includes the attractive green peridot. The most well-known member of the olivine family is peridot. The French term perit?t, which signifies anything unclear, is where the name peridot first originated. Peridot seems hazy due to its many inclusions and interior cracks. Peridot is referred to as chrysolite in old German. Due to its strength and beauty, peridot is often referred to as the evening Emerald.