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Geology I

Horizontales
Rock that is formed by cooling magma
Rock that is formed by the heating and squeeze of the Earth
When a mineral breaks irregularly or does not break along a plane
The ratio between the mass of a mineral and the mass of an equal volume of water
Tendency of a mineral to break smoothly along certain planes
How light reflects on the surface of a mineral
Verticales
A solid inorganic substance that is naturally formed in nature
Rock that is formed layer by layer with the oldest at the bottom
A mixture of different minerals, volcanic glass, organic matter and other materials
The age of an object relative to the age of something else
Color of the powder of a mineral
Ability of a mineral to resist being scratched