Gabbro is a mafic intrusive rocks deep, mainly containing substantially equal clinopyroxene and plagioclase, also contain hornblende, olivine, biotite and other ingredients. Because gabbro is gray and black, so gabbro has been applied in the construction industry, we have the following performance of gabbro, say why gabbro application in building industry.
Gabbro qualities: the main mineral gabbro is pyroxene ( augite, diopside, hypersthene, etc.) and calcium plagioclase. According to light and dark mineral plagioclase mineral pyroxene, olivine proportions are different, we will gabbro gabbro into light and dark gabbro and gabbro three. In addition, we learned gabbro and basalt same chemical composition, but mostly glassy basalt. Gabbro is generally blocky structure, gabbro portion has a hierarchy. Gabbro place in the presence of the layered mafic complex rocks and ophiolite accumulation place.
Due to the small gabbro bulk density, porosity is small, easy to compression, less coarse-grained , high durability, structure uniform gabbro above there are some beautiful patterns, such gabbro polished after the highly decorative, and therefore can be used as high-end decorative stone in the construction industry. Because of different sizes gabbro, for small , no fine patterns gabbro, we choose to use the crusher, crushed into gravel, into road construction or housing construction. Gabbro class has granite material in a very important position, black granite are mostly composed of gabbro class, where there are many rare and valuable species, such as our Shandong "Jinan Green", Inner Mongolia " Fengzhen black ", which are rare and expensive black granite, has a high economic value.