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Rocks & Minerals image (The minerals' properties (Hardness…
Rocks & Minerals
Characteristics of rocks
Origin
Sedimentary
Sediments
Fragments of rocks
Metemorphic
Pressure
Heat
Foliation
Ingeous
Volcanic
Lava
Plutonic
Magma
Texture
Form
Grains
Size
.
Distibution
.
Composition
Minerals
The minerals' properties
Hardness
Resistance
Been scratched
Mohs scale
Tenacity
Resistance
Been bent or broke
Breaks easly
Brittle
Difficult to break
Tough
Colour and streak
Fracture and clevage
How it breaks
Irregular pieces
Fracture
Regular pieces
Clevage
Crystalline structure
If you can see it with the naked eye we call it crystal
Lustre
How it reflects light
Silky
Pearly
Adamantine
Matte
Glassy
Metalic
