Gems. Gemstone: A precious or semi-precious stone. - usually a mineral Gem: A cut or polished...
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Transcript of Gems. Gemstone: A precious or semi-precious stone. - usually a mineral Gem: A cut or polished...
Gemstone: A precious or semi-precious stone.- usually a mineral
Gem: A cut or polished gemstone.
To be a gem a mineral must be:
•Rare
•beautiful
•Hard (> 7)
•Quality cut or polish
There are two basic cutting styles:
1. Cabochon
2. Faceted
Cabochon: rounded surfaces
Faceted: flat surfaces organized in a pattern
BirthstonesBirthstones• January: Garnet or Rose Quartz• February: Amethyst or Onyx• March: Aquamarine or Bloodstone• April: Diamond or Rock Crystal• May: Emerald or Chrysoprase• June: Alexandrite or Moonstone• July: Ruby or Carnelian• August: Peridot or Sardonyx• September: Sapphire or Lapis• October: Opal or Tourmaline• November: Topaz or Citrine• December: Zircon or Turquoise