Category: jewelry watches gemstones

Question:
bought two bunches of Tridacna
the price is not high
want to know how to identify Tridacna
feel very easy with a plastic replica of the ah

Answer:
Natural Tridacna have a clear growth pattern, like tree rings the same; color uneven, some yellowish, and some partial white, there is a natural change; surface appearance of fine lines or small Kong, but they are not the cracks and flaws in the collision, but the growth of naturally formed.

There are many colors now available in ultra-white uniform, no texture or texture rigid, without any growth characteristics, the price of the Tridacna exceptionally low, Shell meal or chemical materials are generally made of repression. When you buy must pay attention to

Answer:
sorry, really heard of “clam” This kind of thing can probably say something.

怎样辨别真假砗磲?

分类:首饰钟表 宝石

问题:
买了两串砗磲
价格不高
想知道怎样辨别砗磲
感觉很容易用塑料仿造的啊

回答:
天然砗磲有清晰的生长纹，就像树木的年轮一样；颜色不均匀，有的偏黄，有的偏白，有自然的变化；表面有细纹或小孔，不过这些可不是裂纹和…