Natural Blue Sapphire
Star Sapphire is a type of sapphire displaying an optical star-like effect. This effect is caused by Asterism. Star Sapphire is a precious gemstone as other sapphires. Star Sapphire also a member of the mineral corundum family and consist Aluminum Oxide with trance amounts of elements, such as Iron, Titanium, Chromium, Vanadium or Magnesium of hexagonal. Due to this hexagonal crystal arrangement, Star Sapphire always shades six lines.