Identify the two main types of luster.

Use the following terms to create a concept map: mineral, crystal, silicate mineral, nonsilicate mineral, ring silicate, framework silicate, singlechain silicate, and silicon-oxygen tetrahedron.

** Applying Ideas** Gold is an inorganic substance that forms naturally in Earth's crust. Gold is also a solid and has a definite chemical composition. Is gold a mineral? Explain your answer.

Predicting Consequences If silicon bonded with three oxygen atoms, how might the crystalline structures of silicate minerals be different?

** Explain** why nonsilicate minerals have a wider variety of crystalline structures than silicate minerals do.

Describe the six main crystalline structures of silicate minerals.

** Name** six types of nonsilicate minerals.

Identify the two elements that are in all silicate minerals.

Compare the two main groups of minerals.

Summarize the characteristics that are necessary to classify a substance as a mineral.

Use the following terms to create a concept map: compound, molecule, ionic compound, ionic bond, ion, covalent compound, and covalent bond.

Evaluating Data If you were given two mixtures and told that one is a solution, how might you determine which one is the solution?

Identify two common solutions.

Applying Ideas What happens to the chemical properties of a substance when it becomes part of a mixture?