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How to identify opal in rain flower stones
Rain flower stones are natural fossils, just like amber. You can see many natural shapes and colors on this stone. Now stripes can see more shapes, and the colors are mostly yellow, red and green. If there are landscapes or figures in the rain flower stones, it will be a very expensive and precious product, which is very rare.
Step 2 shape
Everyone has seen stones. Stones can't have regular shapes. Rain flower stones are mainly irregular ovals with different thicknesses. In a word, nature must be irregular.
3. Difficulties
The composition of rain flower stone is mainly silicon dioxide, so its hardness is extremely high. As a stone, eggs can't touch it, hehe.
4. Weight
The stone must be very heavy, and you can usually feel it in your hand.
Extended data
Unlike most precious stones, opals are amorphous. Some unstable amorphous structures in opal will change color or even crack due to lack of water, but some opals with very stable structures remain unchanged in normal environment. Opal belongs to opal in mineralogy, and contains two kinds of precious stones, one is colored, the other is unchangeable, and it is an amorphous silica containing water.
Rain flower stones are usually associated with Yuhuatai in Nanjing, and they are all believed to be produced in Yuhuatai area. In fact, this is just a misunderstanding. Rain flower stone is a wonderful flower in the world ornamental stone, with beautiful colors and patterns, which can be viewed. She is mainly produced in Nanjing Liuhe and Yizheng Yuetang with beautiful scenery along the Yangtze River. Rain flower stone is named "flower", which is beautiful and charming.
Baidu Encyclopedia-Shi Yuhua
Baidu encyclopedia-opal
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