User:Marsupiens/Books/Synthetic-gemstones

Ruby producers

 * Ruby
 * Ruby
 * Cardinal gem
 * Crystal growth
 * Boule (crystal)
 * Sapphire
 * Diamond
 * Diamond simulant
 * Spinel
 * Auguste Victor Louis Verneuil
 * Edmond Frémy


 * Elements
 * Crystal
 * Corundum
 * Aluminium oxide
 * Strontium titanate
 * Rutile
 * Titanium
 * Chromium oxide
 * Chromium
 * Mineral


 * Process
 * Verneuil process
 * Oxyhydrogen
 * Linde
 * Union Carbide
 * Semiconductor industry
 * Czochralski process
 * Bell Labs
 * Hydrothermal synthesis


 * Factors
 * Hardness
 * Mohs scale of mineral hardness
 * Gemstone