government passed law in July 2010 that requires companies that sell gemstones to determine the origins of their stones.可知为什么美国政府要求出售宝石的公司确定宝石的来源,是为了减少血矿石的交易。选C 【小题3】细节理解题。从文章第五段的句子:but McManus and her team say that gemstones from the ...
Amethyst is one of the "nine secrets" — types of gemstones that can be transformed into ioun stones by the proper spells —and also serves as ink ingredient or spell component in magics involving the communication of messages (such as magic mouth spells) and the augmentation of Wisdom....
In the next revision of these guides, they propose language stating that "it is unfair or deceptive to mark or describe a product with an incorrect varietal name." The names "yellow emerald" and "green amethyst" will be held up as examples of names that could be misleading "based upon ...
harsh chemicals, which can damage or fade the colors. Additionally, it's important to clean them regularly with warm, soapy water and a soft brush to remove any dirt or residue that can dull their shine. Avoid using ultrasonic cleaners or steam cleaners, as they can also damage the ...
light,can reveal the missing peices of one’s life, in other words parts of your soul that has been forgotten. It can be used for deep meditation and works well with Ruby for added strength. Stimulates love, intuition,awareness, courage and passion. It is also known as the lover’s ...
Rhodonite is one of several gemstones that draw their name from the Greek word for rose ("rhodon"); the others are rhodolite garnet and rhodochrosite. Rhodonite, however, is rarely entirely red; it is usually rose pink to red with black dendritic inclusions of manganese oxide....
For many years, people have used crystals as alternative treatments. The idea still enchants many people, but these stones are believed to have energies that can heal the body, mind,… Chakra 22 Best Crown Chakra Stones & How to Use Them ...
This gemstone has been used in all types of jewelry from Victorian jewelry to Southwest Jewelry. Agate is found as a ball or oblong nodule that can range in size from a fraction of an inch to several yards in circumference. Initial important deposit finds in Germany have been pretty much ...
In spite of the confusion in names, ruby has been used for at least 2000 years and has been thought of as regal and / or sacred depending on the culture but it has always been highly prized. Ruby is the only corundum that has its own name. Corundum that is any other color is ...
On the other hand, using the CVD process is inexpensive because it works at moderate temperatures with a low pressure that needs smaller and less costly tools. Colorless crystals can be grown as the vacuum chamber contains mainly carbon and some hydrogen. Yellow or Blue CVD Diamond crystals can...