Earth Science Flashcards
Mineral
a solid inorganic substance of natural occurrence
Rock
the solid mineral material forming part of the surface of earth and other similar planets, exposed on the surface or underlying the soil or oceans
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
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 green or soft glow, especially that of a partly reflective surface
Streak
a long thin line or mark of a different substance or color from it’s surroundings
Cleavage
a sharp division; a split
Fracture
the cracking or breaking of a hard object or material
Hardness
a measure of how resistant solid matter is to various kinds of permanent shape change when a compressive force is applied
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 that contain various metallic elements
Non-Metallic Minerals
minerals that contain various non-metallic elements
