欧泊石的鉴定方法

欧泊的鉴定

欧泊根据它的颜色可分为黑欧泊、白欧泊、黄欧泊等，其中以黑欧泊价格最高。为了使价格较低的白或黄欧泊提高档次，有人就采用人工方法使其变色，成为“黑欧泊”，以牟取高利。其主要方法是用糖煮或注入塑料，使白欧泊变黑。识别的方法是，经过糖煮或注塑的欧泊比重明显不同，在水中测试，其比重值变轻。亦可用加热后的针测试注塑欧泊，天然欧泊热针扎不进，注塑欧泊能够扎进，并会产生塑料烊化后的气味。

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