MInerals & Rocks & MORE

Which list shows ways of classifying minerals?

• luster, size, shape, cost
• color, size, value, cost
• luster, color, hardness, streak

You are given an unknown mineral and asked to identify it.  The mineral has a nonmetallic luster, is transluscent  (clear), has perfect cleavage on three axes at an angle NOT 90 degrees, and a hardness 3.0, with a white or clear streak.  What is the name of the mineral?

• talc
• gypsum
• calcite

You are given an unknown mineral and asked to identify it.  The mineral color is to black with a streak of reddish brown with no cleavage and a hardness of 5.5 to 6.5. What is the name of the mineral?

• Pyrite
• Magnetite
• Gypsum

You are given an unknown mineral and asked to identify it.  The mineral color is green, white, gray with a streak of white and a hardness of 1-2. What is the name of the mineral?

• Talc
• Gypsum
• Fluorite

You are given an unknown mineral and asked to identify it.  The mineral color is Pale brassy yellow with a greenish to brownish black streak, with a hardness of 6 - 6.5 and no known breakage pattern.  What is the name of the mineral?

• Talc
• Gypsum
• Pyrite
• Magnetite 

What are some different ways people use minerals?

• Glass (quartz), Talcum Powder (talc),
• Luster (magnetite), Mohs Hardness Scale (diamonds)

What is the difference between a rock and a mineral?

• A mineral is made up of one substance. A rock is made up of more than one mineral.
• A rock is made up of more than one mineral. A mineral is made up of rock substance.

Geologist classify rock in: Three main rock types are sedimentary, igneous and:

• laval
• metamorphic
• plutonic
• deposition