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Transcript
Earth Rocks Science
& Minerals
GRANITE
The contents of rocks
What are rocks made of?
One or more
Minerals
What are mineral?
Minerals are natural, non-living
solid crystals that make up rocks.
Granite
Granite is one of the most
common rocks in the world.
What 3 minerals?
What is the rock, granite, made of?
Quartz
Feldspar
Mica
What 3 minerals?
What is the rock, granite, made of?
Quartz
Quartz is one of the most common
minerals in Earth’s crust.
What 3 minerals?
What is the rock, granite, made of?
Feldspar
Potassium feldspars contains potassium.
Feldspar crystals are stubby prisms, often
pink to white.
What 3 minerals?
What is the rock, granite, made of?
Mica
All micas form flat, book-like crystals that peal
apart into individual sheets on cleavage planes.
Crystals cleave into smooth flakes. Mica is so
soft that you can scratch it with a fingernail.
A property of minerals
What is cleavage?
Mica
The tendency of a mineral to break
along weak planes.
Granite
What thinking map can we use to
illustrate granite and the minerals
it’s made of?
Mica
pink granite
Lizard on gray granite