diorite
Geography
rock
Rock 3D model
stone
geology
Mineralogy Science Popularization
Neutral plutonic intrusive rock
Magmatic rock
5
Coin
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Diorite is a representative rock of neutral deep crystal rock, and it is also one of the main rock types in granite stone. It is mainly composed of plagioclase (medium-more feldspar) and one or several dark minerals, of which the total amount of dark minerals is generally about 20-35%. No or only a small amount of potassium feldspar, generally not more than 10% of the total feldspar. Does not contain or contains very little quartz, the amount of which does not exceed 5% of the total amount of light-colored minerals. Dark minerals are mainly amphibole, sometimes pyroxene and biotite. The accessory minerals are mainly apatite, magnetite, ilmenite and titanite.
