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What metamorphic grade does the mineral sillimanite belong to?
Sillimanite is an index mineral for high temperature and variable pressure metamorphism.
What is graphite schist?
It is a medium-grade metamorphic rock with a preponderance of the platy mineral graphite.
What is the metamorphic grade of gneiss?
Gneiss is usually considered a high grade metamorphic rock (although there are some weird exceptions).
How are igneous and metamorphic rocks related?
Both gneiss and migmatite are late-stage, high grade metamorphic rocks.
Rocks that differ greatly from their parent rock have what characteristic?
A high metamorphic grade
What metamorphic grade does the mineral sillimanite belong to?
Sillimanite is an index mineral for high temperature and variable pressure metamorphism.
What kind of rock is garnet?
Garnet is a mineral most often found in high grade metamorphic rock.
What can high grade metamorphic progress to?
high grade metamorphism can progress to pressure and weather.
What is graphite schist?
It is a medium-grade metamorphic rock with a preponderance of the platy mineral graphite.
What is the metamorphic grade of gneiss?
Gneiss is usually considered a high grade metamorphic rock (although there are some weird exceptions).
Does metamorphic rock change?
Metamorphic rock can undergo a series of changes called degrees of metamorphism, from low-grade to high-grade.
Index minerals allow a scientist 2 understand the history of metamorphic rock?
Yes! since index minerals form at specific pressure and temperature conditions hence when they are encountered or observed in a certain metamorphic rock they serve to indicate the condition by which the rock formed.They can tell whether it is a high grade or low grade metamorphism.e.g Andalusite mineral indicate high grade metamorphism associated with high temperature.
What can metamorphic rocks change into?
Greenschist, blueschist, zeolite, granulite and eclogite high grade metamorphic rocks.
Which metamorphic facies represents the highest temperature and pressure conditions?
It's eclogite facies.
How are igneous and metamorphic rocks related?
Both gneiss and migmatite are late-stage, high grade metamorphic rocks.
What type of rocks Schist?
Schist is a high-grade metamorphic rock.
What is the origin of gneiss?
it is formed by high-grade regional metamorphic processes
