Mineralogy Quiz

A mineral is a solid substance with a well-defined chemical composition and a specific crystal structure that occurs naturally in pure form.

A mineral is a single, well-defined substance, while a rock is a bulk solid material consisting of one or more minerals.

No, the geological definition of mineral excludes compounds that occur only in living organisms.

<p>Mineraloids are natural solid substances without a definite crystalline structure, such as opal or obsidian.</p> Signup and view all the answers

<p>Yes, living organisms often synthesize inorganic minerals, such as hydroxylapatite, which also occur in rocks.</p> Signup and view all the answers

<p>The geological definition of mineral normally excludes compounds that occur only in living organisms.</p> Signup and view all the answers

<p>A mineral is a solid substance with a specific chemical composition and crystal structure, while a rock is any bulk solid geologic material that may consist of one or more different types of minerals.</p> Signup and view all the answers

<p>Yes, living organisms can synthesize inorganic minerals.</p> Signup and view all the answers

<p>Mineraloids are natural solid substances without a definite crystalline structure, such as opal or obsidian. They differ from minerals in their lack of well-defined crystal structure.</p> Signup and view all the answers

<p>Calcite is an example of a biogenic mineral.</p> Signup and view all the answers