The way a mineral reflects light.

Minerals that break along smooth, flat surfaces.

Minerals that break on rough, jagged, uneven surfaces.

What mineral is attracted to magnets?

Which two minerals are commercial sources of iron?

Which element, found in both biotite mica and muscovite mica, makes up the greatest percent by volume of Earth's crust?

Which mineral is commonly used as an abrasive?

Which characteristic do samples of the mineral pyroxene normally exhibit?

Which mineral is commonly mined as a source of the element lead (Pb)?

Which material is made mostly of the mineral quartz?

Silicate minerals contain the elements silicon and oxygen. Which list contains only silicate materials

The table shows some properties of four different minerals.

The minerals listed in the table are varieties of which mineral?

Mineral A is most likely

What is the density of this mineral sample?

Which physical property of this mineral is most easily seen in the photograph?

A human fingernail has a hardness of approximately 2.5. Which two minerals are softer than a human fingernail?

What is the best way to determine if a mineral sample is calcite or quartz?

Which mineral is composed of Calcium and Fluorine?

The diagram represents top and side views of a model of the silicate tetrahedron.

This tetrahedron is found in large amounts in the Earth's

This structure is called a

The mineral mica breaks evenly along flat sheets mainly because of its

Although diamonds and graphite both consist of the element carbon, their physical properties are very different. The most likely explanation for these differences is that

Two minerals made of pure carbon are diamond and graphite. Which statement best explains why diamond is so much more resistant to scratching than graphite

This property is most closely related to the

The data table provides evidence that

Which property is most useful in distinguishing pyroxene from amphibole?

The table above provides information about four minerals, A through D. Mineral A is most likely...

Quartz and halite have different crystal shapes primarily because

The accompanying data table shows the mass and volume of four different minerals. Which mineral has the greatest density?

Which of the following is not a requirement for an object to be classified as a mineral?

Which mineral is produced when two atoms of Sulfur combine with one atom of iron?

An unidentified mineral that is softer than calcite exhibits a metallic luster and cubic cleavage. This mineral most likely is

Different arrangements of tetrahedra in the silicate group of minerals result in differences in the minerals

Match the following

Scratching a mineral against a glass plate is a method used for determining the mineral's

Match the following minerals to their uses

Which mineral has a hardness of 2.5 – 3 and makes a good electrical insulator?

Which mineral is produced when two atoms of iron chemically combine with three atoms of oxygen?

Hot, molten rock inside the earth is called ...

Once magma reaches the earth's surface, it is called __________.

This rock cooled on the outside of a volcano and contained gas pockets when it was forming. What type of rock is this?

Which igneous rock is dark colored, cooled rapidly on Earth's surface, and is composed mainly of plagioclase feldspar, olivine, and pyroxene?

The igneous rock is mostly composed of potassium feldpsar and quartz crystals that have an average grain size of 3 millimeters. The igneous rock is most likely

What is the origin and rate of formation of this rock?

Which igneous rock has a vesicular texture and

contains the minerals potassium feldspar and quartz?

Which intrusive igneous rock could be composed of

approximately 60% pyroxene, 25% plagioclase

feldspar, 10% olivine, and 5% amphibole?

Biotite mica and muscovite mica have different

chemical compositions. Compared to the magma

from which biotite mica forms, the magma from

which muscovite mica forms is usually

Rocks are classified as igneous, sedimentary, or

metamorphic based primarily on their

Which of these can determine the size of grains in igneous rocks?

Which igneous rock is dark colored, cooled rapidly on Earth's surface, and is composed mainly of plagioclase feldspar, olivine, and pyroxene

The three statements below are observations of the

same rock sample:

• The rock has intergrown crystals from 2 to 3 millimeters in diameter.

• The minerals in the rock are gray feldspar, green olivine, green pyroxene, and black amphibole.

• There are no visible gas pockets in the rock.

This rock sample is most likely

Which igneous rock is formed from magma that cooled slowly and is composed of 5% amphibole, 8% biotite, 15% plagioclase feldspar, 37% quartz, and 35% potassium feldspar?

Which igneous rock could physically weather to

beach sand that contains the minerals pyroxene,

plagioclase feldspar, and olivine?

Which characteristic of the granite intrusion provides the most evidence that it solidified deep

underground?