Finding Rough Sunstone in the Ponderosa Pit by GIA

Описание: http://gia.edu/gem-encyclopedia

Value of Rough Sunstone by GIA. In this video, John Woodmark discusses the value of rough Oregon sunstone when it is sold at market. He also talks about the financial aspects of his sunstone mine in the plush Oregon area. Oregon sunstone, the official state gemstone since 1987, is natural copper-bearing labradorite feldspar. Some examples of Oregon sunstones exhibit red to green dichroism, and fine specimens larger than five carats can sell for more than $1,000 per carat. Creative cuts and calibrated gems alike are designed to highlight the gem’s glowing colors. Though sunstone is available in a range of sizes, large carved gems like the beautiful plush Oregon sunstones seen in this video are rare.

Learn more about sunstone with GIA's gem encyclopedia: http://www.gia.edu/sunstone
• Sunstone Quality Factors: http://www.gia.edu/sunstone-quality-f...
• Sunstone Description: http://www.gia.edu/sunstone-description
• Sunstone Buyer’s Guide: http://www.gia.edu/sunstone#buyers-guide
• Sunstone History and Lore: http://www.gia.edu/sunstone-history-lore
• Sunstone Care and Cleaning Guide: http://www.gia.edu/sunstone-care-clea...

The Official GIA YouTube Channel is a great resource for sunstone knowledge:
• Sunstone: Frequency of Sunstone Mining:    • Видео  
• The Beauty of Ponderosa Sunstone:    • Видео  
• Sunstone | The Oregon Ponderosa Mine:    • The Oregon Ponderosa Mine by GIA  
• Finding Red Sunstone in the Ponderosa Pit:    • Finding Rough Sunstone in the Ponderosa Pi...  

GIA exists to connect people to the understanding of gems. Our videos provide more information on diamonds, gems, and other related topics.
• How to Choose a Diamond | GIA Diamond Grading Guide:    • How to Choose a Diamond: 10-Minute GIA Dia...  
• How to Read a GIA Grading Report:    • How to Read a GIA Grading Report Video by GIA  
• Sapphire and Ruby Mine in Palin, Cambodia:    • River Mining in Pailin, Cambodia, by GIA  
• Mining for Emerald in Brazil:    • Mining for Emeralds in Brazil by GIA  
• What Attracts Us to Ruby | History:    • What Attracts Us to Ruby: History by GIA  

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