You see them in the jewelry store all nice and shiny. What would one look like if you saw in on the ground before it was polished?
The photos are of a ruby in the rough, the top has been polished. These are not gem quality but will still make wonderful jewelry.
Corundum is the mineral and the color denotes whether it is a ruby or a sapphire. The difference is the red ones are rubies and all the other colors are sapphires. Corundum has a hardness of 9 compared to diamond that has a hardness of 10. If you have ever worked with rubies or sapphires you know that you’ll get a spark or two on your diamond wheel.
Jim has started cutting and polishing this specimen and we’ll post the finished product when it is complete.
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