What is the texture of diorite rock?
What is the texture of diorite rock?
Phaneritic
Diorite
| Type | Igneous Rock |
|---|---|
| Texture | Phaneritic (Coarse-grained) |
| Origin | Intrusive/Plutonic |
| Chemical Composition | Intermediate |
| Color | Approximately half dark, half white minerals |
What does a diorite rock look like?
Diorite is a coarse-grained intrusive igneous rock. It contains large interlocking, randomly oriented crystals. It is a dark coloured rock, usually medium to dark grey, containing many mafic crystals. Mostly it looks like dark coloured granite.
What is the color and texture of diorite?
Diorite is the plutonic equivalent of andesite. Group – plutonic. Colour – typically speckled black and white. Texture – phaneritic (medium to coarse grained).
How would you describe the texture of granite?
Granites usually have a coarse texture (individual minerals are visible without magnification), because the magma cools slowly underground, allowing larger crystal growth. Granites are most easily characterized as light colored and coarse grained as a result of cooling slowly below the surface.
Is diorite coarse grained?
diorite, medium- to coarse-grained intrusive igneous rock that commonly is composed of about two-thirds plagioclase feldspar and one-third dark-coloured minerals, such as hornblende or biotite.
What is the luster of diorite?
Luster of Diorite is the interaction of light with the surface of Diorite. Luster of Diorite is shiny. Diorite cleavage is not available. The specific gravity of Diorite is 2.8-3.
How can you tell diorite from granite?
Diorite is known for being coarse in texture and is known for its ability to assist with drainage and erosion management. Unlike granite, which often has pink flecks throughout, diorite is characterized by its black, white and gray mottled look.
Is diorite coarse-grained?
Does granite have fine texture?
Texture. Figure 4.1. 1: Granite is a classic coarse-grained (phaneritic) intrusive igneous rock.
What is the composition and texture of granite?
Texture – phaneritic (medium to coarse grained). Mineral content – orthoclase, plagioclase and quartz (generally more orthoclase than plagioclase), often with smaller amounts of biotite, muscovite or amphibole ( hornblende). Silica (SiO 2) content – 69%-77%. Uses – can be used as aggregate, fill etc.
Is diorite fine medium or coarse grained?
