La première consiste à tester la dureté. Puisque le cristal naturel a une dureté plus élevée que le verre, il peut faire des marques sur le verre sans aucun dommage à lui-même; La seconde consiste à tester la sensation de refroidissement. En été, Le cristal naturel aura également une sensation de refroidissement significative lorsqu'elle est maintenue dans la main, not like glass […]
Archives par auteur Joyjy
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Oct
Oct
“En fait, a beautiful bracelet. The name Swarowski speaks for itself and the offer is unbeatable. But unfortunately, this construction with the individual links and the small eyelets underneath is very awkward for me personally. They should probably cause the bracelet to move from one side to the other side, which should enhance the sparkle. Mais […]
30
Oct
Oct
“The stones sparkle somewhat, Oui, in the light of course more. I think such a closure is pretty safe. The overall quality is ok. Although I and my acquaintances have a lot of Swarowski for a long time and the stones always tend to fall out. This can be seen on the previously purchased silver […]
Cristal, incolore et transparent, Beau et extraordinaire. C'est un artisanat et des ustensiles très communs et populaires. Il peut également être transformé en objectifs; De petits morceaux peuvent être polis dans des pierres précieuses. Améthyste, Le nom anglais Amethys, vient du grec “Amethustos”. L'améthyste est une sorte de lavande, deep purple or grape purple […]
Cristal blanc: Il a les fonctions de concentration, concentration, extension et mémoire. C'est un complexe de toutes les énergies. C'est appelé le roi des cristaux, qui peut purifier tout le corps, se débarrasser de la maladie, et promouvoir la bonne chance. Améthyste: développer une intelligence, stabiliser les émotions, Améliorer les relations interpersonnelles, peut apporter du courage et de la force aux voyageurs, […]
The crystal is composed of three elements: crystal face, crystal edge and apex angle. It has a polyhedral shape and is a geometric body occupying three spaces. The three or four imaginary straight lines that meet in the center of the crystal are called the crystal axis of the crystal. According to the length of […]
The luster of gems has the following types: ① Diamond luster refers to the luster produced by gems with high refractive index. Generally refers to the gloss shown by diamonds. Close to (or slightly inferior) diamond luster is called sub-diamond luster, such gems include zircon, garnet and so on. ②Glass luster refers to the luster […]
Ruby and sapphire are simple oxide minerals, belonging to the trigonal crystal system, the crystals are mostly hexagonal columnar with glassy luster, transparent à translucide, hardness of 9, second only to diamond; stable chemical properties, and good toughness and Obvious pleochroism. Although ruby and sapphire have the same chemical composition, they become crystals with different […]
En minéralogie, Les émeraudes appartiennent au même groupe de Beryl que Aquamarine et Beryl. Le beryl est un silicate contenant du béryllium et de l'aluminium. Sa composition contient souvent du potassium, sodium, calcium, magnésium, fer, lithium, bismuth, manganèse, césium, chrome, vanadium, nickel et autres éléments trace. Certains d'entre eux sont des ions pigments, provoquant le jaune de Beryl (or) rose ou […]
It is said that the Holy Grail used by Jesus in the Last Supper was carved from emeralds. One of the glasses of the ancient Roman tyrant Nero was also made of emeralds, and he used his power to search for emeralds everywhere. In the Iranian royal family of ancient Persia, there are thousands of […]