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Color Defines Ruby vs Sapphire
- A ruby and a sapphire are chemically the same mineral, corundum, differentiated only by color.
- Color variations in gems are caused by the chemical impurities and geological conditions during formation.
Pearls Are Organic Gems
- Gemstones and minerals are inorganic, while pearls and coral are organic products from animals.
- Pearls are not minerals but valued organic gems made by living organisms.
Experience Blasting for Gems
- Kelly went on a private mining tour in California where they blasted holes in a mine wall to access gem pockets.
- They used dynamite carefully to open crystal-filled pockets but did not find much that day.