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Glite Dictionary
actinolite

actinolite

1 9.9
A shiny green mineral found in rocks changed by heat
  • noun
  • /ˈæktɪnəˌlaɪt/
  • Specialized
: actinolita
  • Many actinolites can be found in metamorphic rocks.

Examples

  • Many metamorphic rocks contain minerals such as hornblende, biotite, and actinolite.

  • Actinolite occurs in fibrous form in some asbestos deposits.

  • The geologist identified the shiny green crystals as actinolite under the microscope.

  • The geologist identified the actinolite in the rock sample.

  • The mineral actinolite is typically dark green and is often used in geology.

  • Geologists frequently examine actinolite to understand the conditions under which certain metamorphic rocks formed.

  • In mineralogy, actinolite is recognized for its distinctive green color and fibrous habit, making it easy to identify.

Surface Forms

actinolite singular
actinolites plural

Morphology

actinolite = actin (opaque) = actin + olite

The term is a specialized mineral name formed from a combining form and a mineral suffix; its specific geological meaning is not inferable by an average B1 learner from the components.

Etymology

Actinolite comes from Greek roots aktis 'ray' and lithos 'stone' because the mineral often grows in long fibres that spread out like rays. So the name helps you remember that actinolite is a green stone with ray-like, fibrous crystals.