Rocks and Minerals Review

1.  A naturally occurring solid mixture of one or more minerals or organic matter is a….

• Mineral
• Rock

A naturally formed, inorganic, solid, with a fixed chemical composition, and crystalline structure….

• Rock
• Mineral

Earth scientist classifies the three main types of rock into smaller groups according to ……

• Composition
• Texture
• Formation
• All the Above

What is the softest mineral on the Mohs Hardness Scale?

• Diamond
• Topaz
• Talc
• Gypsum

Which mineral is the most resistant to scratching on the Mohs Hardness Scale?

• Fluorite
• Talc
• Diamond
• Gypsum

A fossil is NOT inorganic because...

• It is not vitreous
• It was once alive
• It is not hard
• It was man-made

Which of the following is NOT a characteristic that defines a mineral?

• Inorganic solid
• Color
• Crystalline system
• Fixed chemical formula

Which of the following substances is a mineral?

• coal, forms from living things
• fluorite, crystalline solid with a chemical formula
• obsidian, volcanic rock
• brass, metal made by humans

Rocks are made of minerals.  Minerals are not made of rocks.

• True
• False

Quartz is found in many different kinds of rock, including obsidian, marble, and sandstone. Based on this information, quartz is a…..

• Sedimentary Rock
• Igneous Rock
• Metamorphic Rock
• Mineral