Mineral HW Practice Together

1. Which mineral is the major component of drywall?

• Talc

• Calcite

• Muscovite Mica

• Selenite Gypsum

2. The table below shows some properties of four different minerals. The minerals listed in

the table are varieties of which mineral?

• Garnet

• Magnetite

• Quartz

• Olivine

3. Quartz and halite have different crystal shapes

primarily because

• light reflects from crystal surfaces

• energy is released during crystallization

• of impurities that produce surface variations

• of the internal arrangement of the atoms

4. The mineral graphite is often used as

• a lubricant

• an abrasive

• a source of iron

• a cementing material

5. Which statement is best supported by this scale?

• A fingernail will scratch calcite, but not quartz.

• A fingernail will scratch quartz, but not calcite.

• A piece of glass can be scratched by quartz, but

  not by calcite.

• A piece of glass can be scratched by calcite, but

  not by quartz

The hardness of these minerals is most closely related

to the

• mineral’s color

• mineral’s abundance in nature

• amount of iron the mineral contains

• internal arrangement of the mineral’s atoms

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

minerals

• graphite, talc, and selenite gypsum

• potassium feldspar, quartz, and amphibole

• calcite, dolomite, and pyroxene

• biotite mica, fluorite, and garnet