Jiandeng granite body, located in Lincheng county of Hebei province, is formed by crustal magma and consists of mediate coarse-grained bulks with meat-red color or light-sheet gneissic biotite moyites and gneissicⅡ-biotite granite with color of light-meat or grey-white. Mediate coarse-grained bulks with meat-red color or light-sheet gneissic biotite moyites are dominant in rock body of mid- and eastern regions; however, gneissicⅡ-biotite granite with color of light-meat or grey-white and mid-thin grained bulks are dominant in rock body of western region. After experiencing a long geological ages and multiple tectonic movements, rock is strongly exerted by differentiation action and experiences process of an extruded alternation. A serial scattered rocks with more complete "rock bulk" maintains in western-south of rock body, which can be developed to be used as building stone mine; particularly, the gneissicⅡ-biotite granite from the western south can be fabricated as exterior wall decorative plates with rough surface, which has distinctive features and a relative large potential for development.%河北省临城县西北的菅等花岗岩体,为太古宙末期由壳源岩浆形成,主要由肉红色中粗粒块状或轻片麻状黑云钾长花岗岩和淡肉红色或灰白色片麻状黑云二长花岗岩组成,在岩体中东部以肉红色中粗粒块状或轻片麻状黑云钾长花岗岩为主,在岩体西边部以淡肉红色或灰白色中细粒片麻状黑云二长花岗岩为主.在漫长的地质年代和多期次构造运动中,岩石经历了强烈的分异作用和被挤压蚀变的过程,岩体的西南部仍然保留有零星分布的系列岩石较为完整的“岩块”,可以作为建筑石材矿开发利用,尤其是西南边部片麻状黑云二长花岗岩上所产的毛面外墙装饰板,特色鲜明,具有较大的开发潜力.
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