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。

youdao

Looks like those whispers we heard about HP's Topaz having a 1.2GHz Qualcomm CPU were true.

ENGADGET: HP / Palm's 9.7-inch Topaz tablet to use 1.2GHz Qualcomm MSM8660, Adreno 220 GPU