Blue topaz is often sold as aquamarine and a variety of brown quartz is widely sold as topaz.
蓝色的黄水晶常被作为海蓝宝石出售，许多种棕色石英被当做黄水晶广为贩卖。
The quartz is much less brilliant and more plentiful than true topaz. Most of it is a variety of amethyst that heat has turned brown.
石英没有纯的黄宝石明亮夺目，但是产量比较丰富。大多数是由各种各样的紫水晶加热转变成褐色的。
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