Andesite Rock | Properties, Composition, Formation, …
- Andesite, together with pyroxene, consists ofplagioclase feldspar. In addition, it may contain hornblende.
- The minerals that this rock can contain areapatite, garbet, ilmenite, biotite, magnetite, zircon. It may also contain traceamounts of alkali feldspar.
- Silica content is moderate. In other words, thismineral is neither rich nor deficient. The silica …
- Andesite, together with pyroxene, consists ofplagioclase feldspar. In addition, it may contain hornblende.
- The minerals that this rock can contain areapatite, garbet, ilmenite, biotite, magnetite, zircon. It may also contain traceamounts of alkali feldspar.
- Silica content is moderate. In other words, thismineral is neither rich nor deficient. The silica content is 50-65%.
- The density of such rocks is 2.11 – 2.36 g /cm3.
Andesite Rock | Properties, Composition, Formation, Uses
Andesite is volcanic rock named after the Andes Mountains. Intermediate in silica content, it is usually gray in color and may be fine-grained or porphyritic. Andesite is the volcanic equivalent of diorite. It consists of the plagioclase feldspar minerals andesine and oligoclase, together with one or more dark, ferromagnesian minerals such as ...