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Chapter 3.1-3.2: Minerals and Rocks

Teacher: Mrs. S. Vandervort
Across
The hardest naturally occurring substance known.
The resistance of a smooth surface to being scratched.
Extracting of metals from the earth and preparing them for use.
Substances that exist naturally in the earth's crust as single, uncombined elements.
The way light is reflected from the surface of a mineral.
The tendency of a mineral to break rapidly along certain flat surfaces.
Minerals that contain the element oxygen bonded to a metal.
Hardness is rated by hardness on a _________ scale.
Down
Substances that are found naturally in the earth and have their atoms in an orderly arrangement.
Consists of compounds made with the elements fluorine, chlorine, bromine, iodine, or astatine.
A valuable metallic element.
The branch of geology that deals with the identification and classification of minerals.
Extracted from the earth.
The mineral powder left after a mineral test.
Flat surfaces and well-defines edges.