• Home
• Contact
• Show Information
• Shop Talk

• 
  Classes
• Alabama
• Alaska
• Arizona
• Arkansas
• California
• Colorado
• Connecticut
• Delaware
• Florida
• Georgia
• Hawaii
• Idaho
• Illinois
• Indiana
• Iowa
• Kansas
• Kentucky
• Louisiana
• Maine
• Maryland
• Massachusetts
• Michigan
• Minnesota
• Mississippi
• Missouri
• Montana
• Nebraska
• Nevada
• New Hampshire
• New Jersey
• New Mexico
• New York
• North Carolina
• North Dakota
• Ohio
• Oklahoma
• Oregon
• Pennsylvania
• Rhode Island
• Tennessee
• Texas
• Utah
• Vermont
• Virginia
• Washington
• West Virginia
• Wisconsin
• Wyoming

Cassiterite Hardness : 6.5 Specific Gravity : 6.95 Refractive index : 2.00 - 2.1 Doubly Refracting (bi-refraction) : 0.1

 

Wednesday 04/24/2024  

• Birth Stone Gems
  • Modern Birthstone List
  • Birthstones Of India
  • Planetary Birth Stones
  • Tibetan Birthstones


• Wedding & Anniversary Gems
  • Wedding Anniversary


• How To Guides
  • Bezel Setting With Mary
  • Casting in Place
  • What is Gold Leaf
  • Gem Care
  • Gemstone Clarity
  • Gemstone Treatment
  • Star Sapphire


• Fireable Gems
  • Natural Gems
  • Synthetic Gems
  • Gemstone Firing Tests


• Nonprofits and Guilds
  • Gold and Silversmith Guilds


• Gem Show
  • Gem Resources Gem Show Dates


• Gem Stone Information
  • Weights and Messurements
  • Gem Properties