Djeva Lab Spinel #104F Aquamarine Rough Material(Stone) Full Boule 70*20mm- 71g

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. Synthetic spinel is widely used because it is slightly softer than synthetic corundum, it can be fashioned more rapidly and less expensively. Secondly, several of the colors in which it is made are better imitation for a number of natural stones than those made in synthetic corundum. A GRADE no crackleFLAME FUSION SPINEL AQUAMARINE NO.104FMOHS SCALE HARDNESS 7.5-8.0MADE IN SWITZERLANDFINE QUALITYQUANTITY 1 PIECESSHIP FROM THAILAND

Price: 48 USD

Location: bangkok

End Time: 2025-01-15T07:56:46.000Z

Shipping Cost: 8 USD