Questions and Answers
What type of rock is Slate?
What is the grain size of Phyllite?
Very Fine
What is a notable property of Schist?
Parallel alignment of platy minerals
Gneiss displays alternating light and dark bands of _____ and feldspar.
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Marble does not react with HCL.
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What is the parent rock of Quartzite?
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What is a property of Metaconglomerate?
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Study Notes
Metamorphic Rock Classification
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Slate
- Type: Foliated
- Grain Size: Very fine
- Key Features: Exhibits slatey cleavage and is lighter in color than shale; produces a ringing sound when tapped; forms in low intensity metamorphic zones.
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Phyllite
- Type: Foliated
- Grain Size: Very fine
- Key Features: Distinguished by a satiny sheen; contains small micaceous minerals; represents medium intensity metamorphic conditions.
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Schist
- Type: Foliated
- Grain Size: Coarse
- Key Features: Characterized by the parallel alignment of platy minerals, predominantly micaceous; indicates intermediate intensity metamorphism.
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Gneiss
- Type: Foliated
- Grain Size: Coarse
- Key Features: Displays alternating light and dark bands formed primarily of quartz and feldspar; associated with high intensity metamorphic environments.
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Marble
- Type: Nonfoliated
- Grain Size: Coarse
- Key Features: Reacts with hydrochloric acid (HCL) and does not scratch glass; derived from limestone, primarily composed of calcite or dolomite.
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Quartzite
- Type: Nonfoliated
- Grain Size: Coarse
- Key Features: Exhibits a sugary luster with interlocking grains; is capable of scratching glass; originates from quartz sandstone.
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Metaconglomerate
- Type: Nonfoliated
- Grain Size: Coarse
- Key Features: Contains fused clast boundaries and displays deformation and rotation of mineral grains; formed from metamorphosed conglomerate.
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Description
This quiz focuses on the classification of metamorphic rocks, highlighting key terms and their definitions. It includes flashcards for slate, phyllite, and schist, detailing their properties and grain sizes. Perfect for geology students seeking to understand metamorphic rock characteristics.
