Ferromagnesian minerals

  • R. G. Rothwell

Abstract

For the purpose of smear slide description, the following minerals are considered to fall within this genral group:
  • The amphiboles

  • The olivines

  • The pyroxenes

Ferromagnesian minerals can be difficult to identify in smear slides, especially if they occur as anhedral grains. Presence or absence of pleochroism, extinction angle, if cleavage traces or crystal form can be observed, and birefringence are probably the best guides.

Keywords

Mass Gravity Interference Colour Ferromagnesian Mineral Smear Slide Extinction Angle 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Elsevier Science Publishers Ltd 1989

Authors and Affiliations

  • R. G. Rothwell
    • 1
  1. 1.Institute of Oceanographic SciencesGodalmingUK

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