Stars and Stones

Stars and Stones

Stars and Stones and Constellations It happens that gemstones are offered for sale that are associated with the different signs of the Zodiac. The fact that these are often very different stones, raises the question of where these associations come from and how...
Clean or Manipulated Crystals?

Clean or Manipulated Crystals?

How to tell if it’s a clean or manipulated crystal? Gems can be manipulated by staining, burning, radiation and other methods in order to improve their optical properties or change them. For example, a purple amethyst can be optically “transformed”...