Plus ou moins exact. On chauffe les saphirs qui m'ont pas une bonne saturation de couleur pour dissoudre les inclusions de rutile ce qui force le titane a prendre place dans la lattice du saphir et ca le rends plus bleu et plus transparent.
Many thanks for this interesting video! As I only understand a little French (😢), would it be possible to add English subtitles?!? 😅 Many kind greetings from Germany 👋🏻👋🏻👋🏻😃
RU-vid will auto translate most videos if they already have the subtitles. Go under the settings for closed captions (CC) and select your language or "auto translate" and select English. Now the English subtitles show up. Doesn't always work, but,for this one it does. The key is the have the transcript available and RU-vid translate from that. Enjoy! Or "Profitez!"
