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Metamorphic Rocks
Metamorphic Rocks
7
Geology
Undergraduate 1
01/25/2018

Additional Geology Flashcards

 


 

Cards

Term
Slate
Definition

A gray, foliated rock without bands of minerals

 

Parent rock is sedimentary shale

 

Commonly used in roofing and flooring

 

Was used to make slates (chalkboards) in school in the 1800's

 

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Term
Schist
Definition

An earthy, foliated rock with sometimes hard-to-see bands of minerals

 

Parent rock is igneous basalt

 

Can sometimes morph into gneiss

 

Bands come in many different colors, such as gray, black, tan, white, and brown

 

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Term
Gneiss
Definition

A foliated rock with easily identifiable mineral bands

 

Parent rock is igneous granite

 

On occasion, parent rock can be metamorphic schist

 

Bands come in a variety of different colors, including white, gray, black, tan, pink and light red

 

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Term
Marble
Definition

A nonfoliated rock

 

Parent rock is sedimentary limestone

 

Usually white or pinkish orange in natural form

 

Frequently morphed into a white/pink form with veins of black/gray

 

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Term
Quartzite
Definition

A nonfoliated rock

 

Parent rock is sedimentary sandstone

 

Chemical composition is 99% silicon dioxide

 

Comes in a variety of different colors, such as red, brown and green

 

Color is relatively consistent throughout

 

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Term
Anthracite Coal
Definition

A nonfoliated rock

 

Parent rock is sedimentary bituminous coal

 

Dark black, sometimes dark gray or dark brown

 

Glassy luster

 

Used as fuel

 

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Term
Garnetiferous Mica Schist
Definition

A porphyroblast (a metamorphic rock with crystals in it)

 

Parent rock is igneous basalt

 

Light gray or tan

 

Has tiny, dark red garnet crystals growing in it

 

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