Exam 5: Patterns in Nature: Minerals

The image below shows a mineral with hydrochloric acid applied to it.Based on the reaction and presence of gas bubbles,which of the following minerals is this most likely to be?

Calcite (CaCO₃)is in which mineral class?

Which of the following is a mineral?

The image below shows a mineral specimen of pyrite.What is the term for the thin parallel corrugations or stripes shown on the crystal faces below?

Minerals in geodes (as seen below)form spectacular euhedral crystals because

Diamond is a polymorph of graphite.What is a polymorph,and explain how graphite is different from a diamond.

The atomic number of an element corresponds to the

Trace amounts of impurity can produce significant differences in ________ among individual crystals of a mineral species.

In silicate minerals,the SiO₄ tetrahedron can be chemically bonded to form all of the following EXCEPT

Silicate minerals are subdivided into six groups based on the way silica tetrahedra are

Draw and label a silicon-oxygen tetrahedron.

Which of the following are good conductors due to the ability of the electrons in the atoms to move around freely?

Diamonds are usually found in a rock called

In which type of silicates are the greatest proportion of oxygen atoms shared by pairs of adjacent tetrahedra?

Using the Mohs hardness scale below,which of the following statements is false?

Which common gemstone results from biomineralization?

Some physical properties are more useful for certain minerals than others.Explain how color may NOT be useful to identify some minerals.

Of the ~4,000 known minerals,the vast majority

Minerals that do not possess cleavage are said to possess

How are diamonds formed?