Rock and Minerals Flashcards
A solid inorganic substance of natural occurrance.
Mineral
The solid mineral material forming part of the surface of the earth and other similar planets.
Rock
A part or section of something.
Element
A mixture of two different elements.
Compound
A solid material whose constituents, such as atoms, molecules or ions, are arranged in a highly ordered microscopic structure.
Crystal
The tone or shade of something.
Color
A gentle sheen or soft glow.
Luster
A long thin line or mark.
Streak
A sharp division, a split.
Cleavage
The cracking or breaking in a hard object or material.
Fracture
A measure of how easily a mineral can be scratched.
Hardness
The thickness in a substance.
Density
A naturally occurring solid material from which a metal or valuable mineral can be profitably extracted.
Ore
Minerals that contain metal.
Metallic Minerals
They are minerals that does not contain metal.
Non-metallic Materials
A precious type of stone.
Gemstone
Comes from lava or magma.
Igneous Rocks
Formed by the deposition of material at the earths surface.
Sedimentary
Arise from the transformation of exsisting rocks.
Metamorphic
