Rock and Mineral Flashcards
Mineral
a solid inorganic substance of natural occurrence
Rock
the solid mineral material forming part of the surface of the earth and other similar planets
Element
a part or aspect of something abstract
Compound
a thing that is composed of two or more separate elements
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
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
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
minerals which contain one or more metallic elements
Non-metallic minerals
a special group of chemical elements from which no new product can be generated if they are melted
Gemstones
a precious or semiprecious stone, especially one cut
Igneous rock
form when hot, molten rock crystallizes and solidifies
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
