Exam 3: Patterns in Nature: Minerals

For the majority of minerals,the streak color obtained when the mineral is scratched against a porcelain plate is ____________.

When in contact with hydrochloric acid,which mineral gives off bubbles of carbon dioxide gas?

Which common mineral is found in most kitchens?

Diamond and graphite are both polymorphs of pure silicon.

Minerals utilized by humans as a source of metal are termed ____________.

Minerals that do not possess cleavage are said to possess ____________.

All minerals are chemical compounds (composed of more than one element).

Ore minerals,such as galena and hematite,tend to be distinct in their very ____________.

Trace amounts of impurity in a mineral can commonly produce significant differences in ____________ among individual crystals of this mineral.

The silica tetrahedron that forms the backbone of all the silicate minerals is composed of silicon and what other element?

The most abundant minerals belong to a chemical group termed the ____________.

Which of the following minerals is hardest?

Topaz,with Mohs hardness of 8,is twice as hard as fluorite,with Mohs hardness of 4.

All minerals are held together by ionic bonds.

With regard to minerals,hardness refers to ____________.

In silicate minerals,tetrahedra may be coordinated to form ____________.

The most useful diagnostic property of minerals is their color in hand sample.

Which of the following is NOT a mineral?

Synthetically made glass and natural quartz crystals both exhibit a fracture pattern termed ___________.

____________ is a mineral property defined by the density of the mineral sample divided by the density of water (e.g., 1g/ ).