Plus important encore: Put artificial red and sapphire on white paper or in the water in a white container to observe. The color bands or growth lines are mostly curved and curved, while the hexagonal growth lines of natural products are slightly curved. The ribbon is straight. En outre, the fluorescence of artificial rubies is stronger […]
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Mais leur composition chimique et leurs propriétés physiques sont très différentes. Par exemple, émeraude a une dureté de 7.5-8, tandis que la fluorite a une dureté de 4; Les émeraudes ont une densité d'environ 2,7 g / cm3, tandis que la fluorite (3.18g) /cm3), tourmaline (3.05g / cm3) et émeraude (3.33g / cm3) avoir des densités plus élevées. Dans le test intérieur avec le tribromométhane, Seules les émeraudes flottaient, et […]
Natural emeralds can be divided into two types: (1) American type: includes emeralds produced in Colombia, Brazil and the United States. It is characterized by low refractive index, small specific gravity, ultraviolet (long wave) irradiation and fluorescence, and the color turns red when observed with Charles filter. (2) African type: emeralds produced in Zimbabwe, Sud […]
(1) Regarding the choice of type and size. En général, the chicken heart, hanging gall and Guanyin are suitable for women to wear; Maitreya Buddha is suitable for men to wear, but there are exceptions. Par exemple, men like the big chicken heart, the hanging gall and the big Guanyin, and it is not enough […]
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“This is my first bracelet ever, so I couldnt buy anything too expensive. Bought this a few days ago, overall pretty satisfied. Thanks ChainsHouse Sizing: I have a 6.6 inch wrist and I bought the 7.5 inch one, there is about enough space to fit one or two fingers so its not too tight. Mais […]
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“As soon as I took it out of the packaging to inspect it and try it on, the little crystals began falling off. I had it out of the box for maybe 2 minutes and already 6 crystals have fallen off. I can’t gift this garbage to my mother for Christmas, so looks like I […]
What Type Of Gold Does Blue Nile Use For Ring Heads? For yellow gold and rose gold settings, Blue Nile uses platinum ring heads to secure center diamonds. All designs in 14k white gold use 14k white gold ring heads which have the strength and durability required to keep a center stone safe. 14k white […]
Qu'est-ce que l'or jaune? Un mélange d'argent, cuivre, or pur (et une trace de zinc) donne aux bijoux en or jaune sa riche brillance. Bien que les pourcentages de chaque métal utilisé pour créer l'alliage varie, Toutes les formules commencent par 75% Or pur pour l'or 18 carats et 58.3% pour l'or 14 carats. The result gives off a […]
Blue Nile Gold We carry jewelry that’s crafted in both 18k and 14k gold. Notre or 18K est un alliage de 75% or avec d'autres métaux pour le rendre suffisamment fort pour l'usure quotidienne, Et notre or 14K est un alliage de 58.3% or et autres métaux. The minimum karat that is allowed to be […]
What Is Gold? People love gold—and they have for a very long time. While the gold adornments preferred by Egyptian Pharaoh Tutankhamun (aka: King Tut) circa 1323 B.C. differ from those worn by today’s style influencers, gold is as prized now as it was then. It’s no wonder that ancient cultures all over the world […]