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What is the Colour of Al2O3?


What mineral is Al2O3?


How do you tell if it’s a ruby or garnet?

Rubies have a deeper and more distinct red color, while garnets, in comparison, appear lighter and paler. In addition, a ruby could perhaps even seem slightly purple, some would even say bluish. But if the hue of the stone leans towards shades such as orange or yellow, you’re probably looking at a garnet.

What does a raw ruby look like?

Raw Ruby Appearance The type of host rock in which a ruby grows may impact its overall shape, with some raw rubies appearing blocky and others adopting a more tapered shape. Although a raw ruby won’t have the sheen of a cut and polished stone, rubies in nature will still have a distinctive red hue.

How much is a raw uncut ruby worth?

$35/Ct rough is around $100/Ct cut and such sell individually or in small lot, anyway after close inspection. Bad quality small size ruby go as low as $50/kg.

How do you clean a raw ruby?

How to Clean Rough Rubies

  1. Soak the rough ruby in lukewarm water.
  2. Remove the ruby from the soak.
  3. Choose a nonabrasive cleaner.
  4. Scrub the rough rubies using a soft bristled brush, sponge or towel.
  5. Rinse your rough ruby thoroughly.
  6. Store your rough ruby in a cloth-lined storage area separate from other jewelry.

How can you tell if an uncut ruby is real?

Real rubies glow with a deep, vivid, almost “stoplight” red. Fake gems are often dull: they are “light, but not bright.” If the gem is more of a dark red, then it may be garnet instead of a ruby. If it is a real ruby, however, know that darker stones are usually worth more than lighter stones.

Why are Burmese rubies so expensive?

One of the main reasons that Burmese rubies are so valuable is because of their very specific, extremely saturated colour, caused by a high chromium content in the ground from which they are extracted.

Which country has the best Ruby?