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南红为什么越戴越黑
更新时间: 2020-11-10 00:00:00  

南红的构成物质是氧化硅,其中红色部分是大量铁的氧化物颗粒聚集,类朱砂点(红色点越细密,颜色越红艳),所以,在正常情况下(即非高温、化学腐蚀等),天然南红是不容易变色的。长时间佩戴南红,肌肤的水分会融入南红中,肌肤的油脂会赌住南红细小的缝隙,保存水分,油脂越多,颜色越鲜亮,如果是越戴越黑,南红可能不是南红,只是红色,可能存在硝化货,烤色货等情况。

关键词: 为什么

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