A blue or bluish black pigment has been prepared based on the technology of coating the phthalocyanine blue and active carbon on the mica-based pearlescent pigment.
将酞菁蓝和活性炭包覆在云母钛珠光颜料上，制得蓝色至蓝黑色的珠光颜料。
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。
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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