Что еще более важно: 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. Кроме того, the fluorescence of artificial rubies is stronger […]
Автор: Король
But their chemical composition and physical properties are very different. Например, emerald has a hardness of 7.5-8, while fluorite has a hardness of 4; emeralds have a density of about 2.7g/cm3, while fluorite (3.18глин) /cm3), турмалин (3.05г/см3) и изумруд (3.33г/см3) have higher densities. In the indoor test with tribromomethane, only emeralds floated up, и […]
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, South […]
(1) О выборе типа и размера. Вообще говоря, куриное сердце, висячая желчь и Гуаньинь подходят для ношения женщинами.; Будда Майтрейя подходит для ношения мужчинами., но есть исключения. Например, мужчинам нравится большое куриное сердце, висячая желчь и большая Гуаньинь, and it is not enough […]
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“Это мой первый браслет, поэтому я не мог купить ничего слишком дорогого. Купил это несколько дней назад, в целом очень доволен. Спасибо ChainsHouse Sizing.: У меня есть 6.6 дюймовое запястье, и я купил 7.5 дюйм один, места достаточно, чтобы поместиться один или два пальца, поэтому он не слишком тесный. Но […]
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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, медь, чистое золото (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. Наше 18 -километровое золото - это сплав 75% золото с другими металлами, чтобы сделать его достаточно сильным для повседневной одежды, и наше 14 -километровое золото - это сплав 58.3% золото и другие металлы. 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 до нашей эры. 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 […]