Description: The Verneuil method (or Verneuil process or Verneuil technique), also called flame fusion, was the first commercially successful method of manufacturing synthetic gemstones, developed in the late 1883 [1] by the French chemist Auguste Verneuil. It is primarily used to produce the ruby, sapphire and padparadscha varieties of corundum, as well as the diamond simulants rutile and strontium titanate. The principle of the process involves melting a finely powdered substance using an oxyhydrogen flame, and crystallising the melted droplets into a boule. The process is considered to be the founding step of modern industrial crystal growth technology, and remains in wide use to this day. Corundum has two primary gem varieties: ruby and sapphire. ... Because of corundum's hardness (pure corundum is defined to have 9.0 on the Mohs scale), it can scratch almost every other mineral. It is commonly used as an abrasive on everything from sandpaper to large tools used in machining metals, plastics, and wood.FLAME FUSION CORUNDUM RUBY LAB CREATED ROUGH BLUE SAPPHIRE STAR SYNTHETIC CORUNDUM SIZE 30X7MM SHIP FROM THAILAND MADE IN JAPAN QUANTITY 3 PIECES
Price: 35 USD
Location: bangkok
End Time: 2024-11-27T06:52:17.000Z
Shipping Cost: 8 USD
Product Images
Item Specifics
All returns accepted: ReturnsNotAccepted
Gemstone Color: BLUE SAPPHIRE
Gemstone Type: BLUE SAPPHIRE
Cut Grade: UNCUT FREE FORM
Item Length: 115MM
Item Depth: 15MM
Gemstone Shape: FLAME FUSION
Gemstone Creation: Lab-Created
Brand: BGEM
Gemstone Form: FULL BOUEL
Gemstone Clarity Grade: A GRADE
Country/Region of Manufacture: Japan
Country of Origin: Thailand
Item Width: 15MM
Natural/Lab-Created: Lab-Created
