Characteristics: Amazonite or "Amazon stone" was named after the Amazon river and is a blue-green variety of alkali feldspar. It color is thought to be caused by trace amounts of lead within the stone causing a wide range of blue to green coloring with distinctive white pattern of streaks. Collecting locations include Brazil, Russia, Italy, Colorado, Australia and Madagascar. Amazonite has a hardness of 6 on the Mohs scale.
History: Legends say the Amazon tribes used amazonite stones for decoration and trading purposes. However, it is believed to date as far back as the 10th century BC. Ancient Egyptians also treasured amazonite and made it into beautiful jewelry, carvings and texts. A number of these historical carvings and jewelry have been found among the items in King Tut's tomb.