mineral silk

4

Corundum is the lovely mineral that makes up sapphires which come in many colors and varieties.  Except red, my dears, the red variety is ruby!

Now, as one can see, the typical blue sapphire can also have some variations and with “silk” of mineral rutiles, it becomes a star sapphire which has its own beauty.  The center photo is of the famous Star of Asia and has an especially exact star to display.