11/21/14 Flashcards
Ion
an atom that gains of loses an electron
Compound
substance composed of atoms of 2 or more different elements that are chemically bonded
Molecule
combination of 2 of more atoms joined by covalent bonds
Specific gravity
ration of the mass of a substance to the mass of an equal volume of H2O at 4c
Luster
the way that a mineral reflects light from its surface; two types: metallic and non-metallic
Cleavage
the manner in which a mineral breaks along planes where atomic bonding is weak
Hardness
measure of how easily a mineral can be a mineral can be scratched which is determined by the arrangement of a mineral’s atoms
Silica Tetrahedron
geometric solid having 4 sides that are equilateral triangle; minerals contain silica
Streak
color a mineral leaves when it is rubbed across an unglazed porcelain plate of when it is broken up and powdered
Fracture
when a mineral breaks into pieces with arch-like, rough or jagged edges
an atom that gains of loses an electron
Ion
substance composed of atoms of 2 or more different elements that are chemically bonded
Compound
combination of 2 of more atoms joined by covalent bonds
Molecule
ration of the mass of a substance to the mass of an equal volume of H2O at 4c
Specific gravity
the way that a mineral reflects light from its surface; two types: metallic and non-metallic
Luster
