rock and mineral Flashcards
Mineral
a solid inorganic substance of natural occurrence.
Rock
a large piece of rock that has become detached from a cliff or mountain; a boulder.
Element
a part or aspect of something abstract, especially one that is essential or characteristic.
Compound
a thing that is composed of two or more separate elements; a mixture.
Crystal
a piece of a homogeneous solid substance having a natural geometrically regular form with symmetrically arranged plane faces.
Color
the property possessed by an object of producing different sensations on the eye as a result of the way the object reflects or emits light.
Luster
a gentle sheen or soft glow, especially that of a partly reflective surface.
Streak
a long, thin line or mark of a different substance or color from its surroundings.
Cleavage
a sharp division; a split.
Fracture
the cracking or breaking of a hard object or material.
Density
the degree of compactness of a substance.
Ore
a naturally occurring solid material from which a metal or valuable mineral can be profitably extracted.
Metallic minerals
Metallic minerals are minerals which contain one or more metallic elements.
Non-metallic minerals
reserves consist of stone quarries and clay and sand pits; chemical.
Gemstones
a precious or semiprecious stone, especially one cut, polished, and used in a piece of jewelry.
Igneous rock
Igneous rock, or magmatic rock, is one of the three main rock types, the others being sedimentary
Sedimentary rock
edimentary rocks are types of rock that are formed by the deposition and subsequent cementation of mineral or organic
Metamorphic rock
A metamorphic rock is a type of rock which has been changed by extreme heat and pressure.
