Endnu vigtigere: Sæt kunstig rød og safir på hvidt papir eller i vandet i en hvid beholder for at observere. Farvebåndene eller vækstlinjerne er for det meste buede og buede, mens de sekskantede vækstlinjer for naturlige produkter er let buede. Båndet er lige. Derudover, the fluorescence of artificial rubies is stronger […]
Forfatter Arkiver: Kingjy
Men deres kemiske sammensætning og fysiske egenskaber er meget forskellige. For eksempel, smaragd har en hårdhed på 7.5-8, mens fluorit har en hårdhed på 4; smaragder har en tæthed på omkring 2,7 g/cm3, mens fluorit (3.18g) /cm3), Tourmaline (3.05g/cm3) og smaragd (3.33g/cm3) har højere tætheder. I den indendørs test med tribrommethan, kun smaragder flød op, og […]
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, Syd […]
(1) Regarding the choice of type and size. Generelt set, 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. For eksempel, 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: jeg har en 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. Men […]
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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 […]
What Is Yellow Gold? A mixture of silver, kobber, Rent guld (and a trace of zinc) gives yellow gold jewelry its rich shine. Although the percentages of each metal used to create the alloy vary, all formulas starts with 75% pure gold for 18k gold and 58.3% for 14k gold. The result gives off a […]
Blue Nile Gold We carry jewelry that’s crafted in both 18k and 14k gold. Our 18k gold is an alloy of 75% gold with other metals to make it strong enough for everyday wear, and our 14k gold is an alloy of 58.3% gold and other metals. 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 […]