r m Flashcards
a solid inorganic substance of natural occurrence.
Mineral
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
a part or aspect of something abstract, especially one that is essential or characteristic.
Element
a thing that is composed of two or more separate elements; a mixture.
Compound
a piece of a homogeneous solid substance having a natural geometrically regular form with symmetrically arranged plane faces
Crystal
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
Color
a gentle sheen or soft glow, especially that of a partly reflective surface
Luster
a long, thin line or mark of a different substance or color from its surroundings
streak
a sharp division; a split
Cleavage
