Gemstones Photos

Categories

• ►Birthstones (1)
  • Birthstone
• ►Classification of gems (15)
  • ►Liquid solutions to gemstones (7)
    • Garnets to Malachite
    • Hauynite to Opal
    • Jet to Amber
    • Phenakite to Rock-crystal
    • Pyrope to Diamond
    • Rhodonite to Nephrite
    • Seven solutions
  • Cleavage of minerals
  • Crystalline structure
  • Hardness of gems and jewels
  • Heat-rays to precious stones
  • Light and diaphaneity
  • Magnetic and Electric Influences
  • Pleochroism and colour of minerals
  • Specific gravity of gemstones
• ►Cut and polished gemstones (1)
  • Cutting of precious stones
• ►Detect imitation from natural gemstones (10)
  • ►Gemstones hardness and gravity by colour (9)
    • White or colourless stones
    • Black gemstones
    • Blue gemstones
    • Brown and Flame Stones
    • Green gemstones
    • Pink gemstones
    • Red and rose gemstones
    • Violet gemstones
    • Yellow Stones
  • Testing precious stones
• ►Precious stones & minerals (2)
  • Origin of precious stones
  • Precious stones
• ►Properties and composition of precious stones (13)
  • Beryl
  • Chrysoberyl
  • Corundum
  • Diamond
  • Emerald
  • Lapis-Lazuli
  • Ruby
  • Sapphire
  • Silicates
  • Topaz
  • Tourmaline
  • Turquoise
  • Zircon