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1 All minerals are rock, but not all rock is mineral Solid Naturally occurring Inorganic Chemical composition * Crystal internal structure * Igneous require another rock Coal Any rock type can become any other rock type or it can become itself again. Compacting and Cementing Baking Baking Sedimentary Igneous Metamorphic

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Page 1: All minerals are rock, but not all rock is mineralsmsdhs.ss13.sharpschool.com/UserFiles/Servers/Server... · 1 All minerals are rock, but not all rock is mineral Solid Naturally occurring

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All minerals are rock, but not all rock is mineralSolid Naturally occurringInorganic Chemical composition

* Crystal internal structure *

Igneous

require another rock

Coal

Any rock type can become any other rock type or it can become itself again.

Compacting and Cementing

Baking

Baking

SedimentaryIgneousMetamorphic

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Section 6.2 pgs 121 ­ 126

Magma = lots of gas

gases= water vaporcarbon dioxide

Silica = siliconand oxygen

Lava =low or no gases

Fast or slow

Viscosity= thicknessof a liquid

1000o F

2000oF

Light colored

Dark colored

Part light part dark

How it LOOKS not how it feels

Fast cooling =  small or no crystals   Slow cooling = large crystals

Cooling Time

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Long cooling= large crystalsShort cooling =small / no crystals

Months / Years

Hours / Days

Magma on the surface

Porphory­rock having twodifferent crystal sizeswithin it

Two differentcooling rates

Some Igneous rocks contains fossilsPetrified wood ­ mineralized wood

Detrital

oar

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Felsic

Mafic

Coarse

Fine

PorousGlassy

FinePorous

Felsic

Felsic

MaficMafic

Obsidian

Granite

Scoria

PumiceRhyolite

Basalt

Igneous Rock Identification­Color ­ Mafic, Felsic, Intermediate (minerals)Texture (Size of Crystals)­ Coarse, Fine, Glassy, Porous

Porphyry ­ 2 sized crystals

Texture ­ size of crystals Mineral Composition

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ConglomerateRounded

BrecciaAngular

SandstoneShale

Peat

Lignite

Bituminous

Anthracite

Coal Formation

Large

Small

CLASTIC

Bedding

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Mineral formation from pressure

other Metamorphic rocks

Bake

Small ScaleValley / Volcano

Large ScaleMountain rangesContinents

Granite ­ >  Gneiss

Shale ­ > Slate

Shale ­ > Schist

Sandstone ­ > Quartzite

Limestone ­ > Marble

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