 |
| Olivine |
Granite is usually comprised of three minerals in varying amounts. They are hornblende, feldspar, and quartz. Hornblende is black. It can fracture on the plane and produce small shiny surfaces. Feldspar is usually pink. Quartz may come in translucent or rose. It has a crystalline structure. Some other minerals include olivine which is formed deep within the earth under great pressure. It is green in color and may also occur in granite.
 |
| Hornblende |
 |
| Feldspar |
 |
Quartz
|
No comments:
Post a Comment