rocks and minrels Flashcards
Mineral
a naturally inorganic solid that has a definite cyrtialine structure
rock
a naturally occurring solid mixture of one or more minerals or orginc matter
Element
a substance that cannot be sebarted or broken down into simple substance by chemical means
Compound
a substance made up of atoms of two or more different elemts joined by chemical bons
Crystal
a solid whose atoms, ions or molecules are arranged in a definite patteron
. Color
Luster
a gentle sheen or soft glow, especially that of a partly reflective surface.
streak
The streak of a mineral is the color of the powder produced when it is dragged across an un-weathered surface.
Cleavage
a sharp division; a split
Fracture
the separation of an object or material into two or more pieces under the action of stress.
Density
Density, is the substance’s mass per unit of volume.
Ore
a naturally occurring solid material from which a metal or valuable mineral can be profitably extracted.
. Metallic minerals
minerals which contain one or more metallic elements.
Non-metallic minerals
Non-metallic mineral reserves consist of stone quarries and clay and sand pits
Gemstones
A gemstone is a piece of mineral crystal which, in cut and polished form
. Igneous rock
Igneous rock, or magmatic rock, is one of the three main rock types, the others being sedimentary and metamorphic.
Sedimentary rock
Sedimentary rocks are types of rock that are formed by the accumulation or deposition of mineral or organic particles at Earth’s surface
Metamorphic rock
started out as some other type of rock, but have been substantially changed from their original igneous, sedimentary, or earlier metamorphic form.
