rocks Flashcards
a naturally fromed inorganic soild that has a definite crystalline structure
mineral
a substance that cannot be separated or broken down into simpluer substances by chemical means
element
a substance made up of atoms of two or more different elements jointed by chemicla bounds
compounds
a soild whose atoms, ions, or molecules are arranged in definite pattern.
crystal
the way in whice a mineral reflects light
luster
the color of powder of a mineral
streak
the splitting of a mineral along smooth, flat surfaces
cleavage
the manner in which a mineral breaks along either currved or irreguler surfaces
fracture
the ratio of the mass of a substance to the volume of the substance
density
a naturally occurring solid material from which a metal or valuable mineral can be profitably extracted.
ore
minerals which contain one or more metallic elements.
metallic minerals
Non-metallic mineral reserves consist of stone quarries and clay and sand pits;
Non-metallic minerals
a precious or semiprecious stone, especially one cut, polished, and used in a piece of jewelry.
Gemstones
Igneous rock, or magmatic rock, is one of the three main rock types
. Igneous rock
formed from pre-existing rocks or pieces of once-living organisms.
Sedimentary rock
A metamorphic rock is a type of rock which has been changed by extreme heat and pressure.
Metamorphic 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.
Rock
usually 1st characteristic noticed about a mineral, but not always reliable
Color
