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Which rock is foliated shows mineral alignment but not banding and contains medium sized grains of quartz and pyroxene?
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∙ 7y ago
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Christop Hodkiewicz
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A foliated dense rock that has light and dark colored banding?
gneiss
Is quartzite foliated or nonfoliated?
Quartz is a mineral, not a rock that neither does or does not exhibit foliation (a banding, layering, or alignment of minerals that presents itself in some metamorphic rocks). Quartzite, a rock made almost entirely of quartz, is a non-foliated metamorphic rock.
Is pumice foliated or non foliated?
Igneous rock (like pumice) does not normally display banding, layering, or flaky texture. Foliated vs. non-foliated as a descriptive term in rock identification is most often used in reference to metamorphic rock.
What is a kind of non foliated metamorphic rock?
Metamorphic rocks are rocks that have their grains arranged in parallel layers or bands. Foliated rocks are formed under great pressure and heat, and when they cool they have a banded grain pattern.
Foliated rocks are distinguished by?
The main way metamorphic rocks are classified is by the presence or absence of foliation. Foliated metamorphic rocks are distinguished by the type of foliation they exhibit. Types of foliation textures, include: slaty, phyllitic, schistose, and gneissi.
What type of metamorphic texture has no banding?
No banding or alignment of a metamorphic rock's minerals would be consider non-foliated.
Is it true that foliated metamorphic rocks have mineral grains that are randomly placed?
It is not true. Metamorphic rock foliation is displayed as banding or layering due to mineral alignment.
What Mineral alignment in a metamorphic rock usually gives the rock a porphyritic texture?
A porphyritic texture can be a feature of igneous rocks, but 'porphyritic' is not used to describe metamorphic rock texture. Metamorphic rocks can be foliated or non-foliated, terms used to describe mineral alignment or banding, or the lack thereof.
What are foliated metamorphic rocks?
Foliated rocks have layers in them. We often refer to the layers as Banding.
What is the texture term for metamorphic rocks which lack banding?
Non-foliated
A foliated dense rock that has light and dark colored banding?
gneiss
What is a foliated dense rock that has light and dark colored banding?
Gneiss
What rock has a foliated dense rock that has light and dark colored banding?
Gneiss
Metamorphic rocks that do not have distinct layers or bands?
non-foliated.
Are slate and gneiss foliated?
Slate is certainly foliated and splits easily along this foliation surface. Gneisses frequently banded and this banding is also a foliation.
Is quartzite foliated or nonfoliated?
Quartz is a mineral, not a rock that neither does or does not exhibit foliation (a banding, layering, or alignment of minerals that presents itself in some metamorphic rocks). Quartzite, a rock made almost entirely of quartz, is a non-foliated metamorphic rock.
What kind of rocks are non-foliated?
Certain metamorphic rocks that do not exhibit foliation (banding, lamellar texture) like quartzite and marble are described as non-foliated.
