It features precise Swiss quartz movement, and the black touch-screen dial is protected by a scratch-resistant mineral crystal.
它具有精确的瑞士制造石英机芯，黑色触摸屏拨号是由防刮矿物晶体的保护。
The ore is simple in mineral composition, the main minerals including black talc, calcite, quartz, montmorillonite etc.
矿石物质组分简单，主要为黑滑石、方解石、石英、蒙脱石等。
The rocks of this Formation, which are black or light black for rich of c, consist mainly of mica quartz schist, quartzite, marble, carbonaceous phyllite.
其岩石类型主要有云母石英片岩、石英岩、大理岩、炭质千枚岩等，因富含炭质而呈灰色，灰黑色。
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