BJU Earth Science Chapter 9

Which of the following is not a native mineral?

the bending of light

Which of the following is a mixture?

True or False: Diamond is composed of carbon.

Oxides are compounds that consist of _______ and another element, usually a metal.

A transparent mineral fluoresces red and exhibits double refraction. You could conclude it is

Sulfur is to native mineral as quartz is to

Which of the following is not a mineral?

the glow caused by ultraviolet light illumination

A dark mineral sample attracts iron filings. You could conclude that the mineral is

True or False: Some minerals can have more than one color

the amount and quality of the light reflected from a mineral's surface

The brilliance of a diamond is due to its high index of

True or False: All native minerals are pure elements.

A carat is a unit of

Obsidian breaks in smooth, curved surfaces. What type of fracture does it show?

Which one of the following minerals has perfect cleavage?

the color of a minerals powder

True or False: Some minerals are too hard to leave a streak on a streak plate.

The mineral cinnabar, also called mercury sulfide, is an important ______ of mercury.

The best metallic conductor of electricity is

The most abundant family or class of minerals is the

T or F: A minerals streak is a more reliable way to classify a mineral than its apparent color.

A geologist who studies and identifies mineral samples is called a(n) ____________.

True or False: The Mohs scale is used to rate a mineral's resistance to fracturing.

When you conduct an acid test on a mineral sample, you are watching for

T or F: A mineral sample that can glow for extended periods in dark is said to be fluorescent

True or False: All minerals are composed of two or more elements.

Fool's gold (also called pyrite), a mineral of iron and sulfur, is classified as a(n)

two or more substances combined but not chemically bonded

What common metal was once worth more per ounce than gold?

the ratio of the density of a specimen to the density of water at 4 degrees C

A mineral rates as 1 on the Mohs scale is

T or F: Cleavage and fracture both refer to the characteristic way in which a mineral breaks.

What is a mineral with only one kind of atom

True or False: Placer deposits are found deep underground

A mineral sample gives a strong reading on a Geiger counter. You could conclude that it is

The process by which a crystal grows is called

If a mineral produces regular, flat surfaces when it breaks, then it exhibits

Mineral salts are more properly called