Rocks and Minerals Flashcards
Mineral
a naturally formed, inorganic solid that has a definiate
rock
the solid mineral material forming part of the surface of the 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; 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
The colour of a mineral when powdered and observed against an unglazed white porcelain plate.
cleavage
The tendency of a mineral to break along flat planar surfaces as determined by the structure of its crystal lattice
fracture
any kind of separation or break in a rock formation.
density
as the mass of a substance per unit volume
ore
A large deposit of mineral that is able to be mined
metallic
Shiny
non metallic
not shiny
gemstone
precious or semiprecious stone, especially when cut and polished or engraved
