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Rocks and Minerals (Characteristics (Origin (Lava or magma from the…
Rocks and Minerals
Characteristics
Origin
Lava or magma from the Earth´s mantle solidifies
Composition
One mineral
Made of several minerals
Igneus rocks from molten from the mantle
Two Types
Volcanic rocks
Granite
Peridotite
Plutonic rocks
Basalt
Gabbro
Metamorphic Rocks
Slate
Gneiss
Sedimentary Rocks
Coal
Conglomerate
MInerals
Properties of minerals
Tenacity
It´s the resistance a mineral has to breaking or bending if it is hit or deformed
Fracture and Cleavage
Fracture is when a mineral breaks into irregular shaped body
Cleavage is when a mineral breaks into regular shaped body
Hardness
It´s the resistance of a mineral to be scratched by another mineral or object
