High-Ti basalt

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Typical basalts of older mare lavas on the moon. They have 9-13% TiO₂.

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Classification of High-Ti basaltHide

Rock
- Igneous rock
  - Normal crystalline igneous rock
    - Fine-grained ("volcanic") normal crystalline igneous rock
      - Basaltoid
        Basalt
        High-Ti basalt
      - Basic volcanic rock
        Basalt
        High-Ti basalt
- Meteorite and other extra-terrestrial rock and sediment
  - Lunar igneous rock
    - Mare basalt
      - High-Ti basalt

High-Ti basalt is found in field B in the TAS diagram.

Essential minerals - these are minerals that are required within the classification of this rock:

Feldspar > Plagioclase	A petrological term for Albite-Anorthite Series.
Ilmenite	Fe²⁺TiO₃
Pyroxene	A petrological term for Pyroxene Group.

Non-essential minerals - these minerals are common, sometimes major components, but are not always present:

Armalcolite	(Mg,Fe²⁺)Ti₂O₅
Olivine	Equivalent to Fayalite-Forsterite Series; usually a more or less Fe-bearing forsterite.
Pyroxene > Clinopyroxene > Augite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
Pyroxene > Clinopyroxene > Pigeonite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
Ulvöspinel	TiFe₂O₄

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