...被磨得光润圆滑，其用或曾软硬兼施但以施用于较软物质为多； ---材质或属于此地比较多见的一种叫“石英斑岩”（quartz porphyry）的火山岩，颗粒度比花岗岩要细一些，相比燧石、石英、脉石英等要粗疏且坚韧度稍差。
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biotite quartz porphyry 云英斑岩 ; 黑云母石英斑岩
quartz-porphyry tuff 石英斑状凝灰岩
square quartz porphyry 方石英斑岩
Quartz Porphyry And 石英斑岩和
altered quartz porphyry 蚀变石英斑岩
quartz-diorite-porphyry 石英闪长斑岩
quartz-monzonite-porphyry 石英二长斑岩
The shallow quartz porphyry is ore-bearing massif and the deep granite porphyry is ore-origimating one.
浅部石英斑岩为含矿岩体，深部花岗斑岩为矿源岩体。
Ludousou gold deposits belong to fractured altered rock-type gold deposit, produced in Dewulu quartz diorite and Ludousou quartz porphyry contact zone.
录斗艘金矿床属破碎蚀变岩型金矿，产于德乌鲁石英闪长岩与录斗艘石英闪长斑岩接触带附近。
Consistence between isotopic model age of lead ore and intrusion age of quartz porphyry shows close relations among structure movements, magmatism and mineralization in Stage of Yenshan.
矿石铅同位素模式年龄和石英斑岩体侵入年龄的一致性反映燕山期构造、岩浆和成矿作用的密切关系。
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