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What Mineral alignment in a metamorphic rock usually gives the rock a porphyritic texture?
Wiki User
∙ 11y ago
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.
Wiki User
∙ 11y ago
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What is a foiliated metamorphic rock?
A foiliated metamorphic rock is a metamorphic rock that has a texture of parallel alignment of mineral grains. Your Welcome...
When a mineral grains in a metamorphic rock do not form layers the rock has a?
no texture
Metamorphic rocks that consist of only one mineral that forms large interlocking crystals often have a texture.?
Metamorphic rocks that consist of only one mineral that forms large interlocking crystals often have a _____ texture.
What is a porphyritic texture?
A porphyritic texture is displayed in an igneous rock containing large isolated crystals (phenocrysts) in a mass of fine textured crystals . Porphyritic texture indicates that a magma has gone through a two stage cooling process. The magma has cooled sufficiently underground to allow some minerals to crystallize and grow in size; the magma is then expelled above ground where the remaining liquid magma solidifies quickly, allowing only small crystals to develop.See link below for a picture of a porphyritic texture in a rock.
When mineral grains flatten and line up in layers a metamorphic rock has a?
A schistose texture.
What is a foiliated metamorphic rock?
A foiliated metamorphic rock is a metamorphic rock that has a texture of parallel alignment of mineral grains. Your Welcome...
What is a metamorphic rock that has parallel alignment of mineral grains?
A folliated texture metamorphic rock, like shist.
Does a porphyritic texture include two different sizes of mineral grains?
Yes
Igneous rocks are classified based upon their mineral composition and?
And their texture, which can be aphanitic, phaneritic, glassy, or porphyritic. mineral composition and crystal texture
When mineral grains in a metamorphic rock do not form layers the rock has what texture?
no texture
What type of metamorphic texture has no banding?
No banding or alignment of a metamorphic rock's minerals would be consider non-foliated.
When a mineral grains in a metamorphic rock do not form layers the rock has a?
no texture
Is porphyritic texture is not a feature of sedimentary rocks?
Porphyritic texture is a feature of some igneous rocks, not sedimentary rocks.
Metamorphic rocks that consist of only one mineral that forms large interlocking crystals often have a texture?
Metamorphic rocks that consist of only one mineral that forms large interlocking crystals often have a _____ texture.
Metamorphic rocks that consist of only one mineral that forms large interlocking crystals often have a texture.?
Metamorphic rocks that consist of only one mineral that forms large interlocking crystals often have a _____ texture.
What do metamorphic rocks with a non-foliated texture show metamorphic changes involve?
mineral grains arranging into layers.
What is a porphyritic texture?
A porphyritic texture is displayed in an igneous rock containing large isolated crystals (phenocrysts) in a mass of fine textured crystals . Porphyritic texture indicates that a magma has gone through a two stage cooling process. The magma has cooled sufficiently underground to allow some minerals to crystallize and grow in size; the magma is then expelled above ground where the remaining liquid magma solidifies quickly, allowing only small crystals to develop.See link below for a picture of a porphyritic texture in a rock.
