Which of the Statements Regarding Economically Valuable Igneous Rocks or Minerals

question 41

Multiple Choice

Which of the statements regarding economically valuable igneous rocks or minerals is NOT true?

• A) The fact that they crystallize at lower temperatures than most other minerals accounts for economically valuable concentrations of some minerals.
• B) Solution and hot fluid redeposition form economically valuable concentrations of some minerals.
• C) Valuable stones, such as emerald and topaz, are found in felsic pegmatitic rock.
• D) Gold, silver, copper, lead, and zinc often form near mafic and ultramafic igneous rocks.

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Definitions:

Sum Certain

A specific, fixed amount of money that is clear and unambiguous in a legal agreement or financial transaction.

Shares of Stock

Units of ownership in a corporation, representing a portion of the corporation's capital.

Negotiable Instrument

A written document guaranteeing the payment of a specific amount of money, either on demand or at a set time, with the payer's sign.

Enforceable Contract

A valid contract that is legally recognized and that can be upheld in a court of law.