Hyalopilitic Texture

Hyalopilitic texture is a texture of volcanic rocks in which the groundmass consists of small microlites of feldspar (sub-parallel to each other) embedded in glass.

Bibliography



• Deer, W.A., Howie, R.A., Zussman, J. (1998) Rock-forming Minerals.
• Optical Mineralogy : The Nonopaque Minerals by Phillips / Griffen
• E. WM. Heinrich (1956): Microscopic Petrografy. Mcgraw-hill book company,inc
• Cox et al. (1979): The Interpretation of Igneous Rocks, George Allen and Unwin, London.

Photo
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Small microlites of plagioclase (sub-parallel to each other) in a Basalt. PPL image , 10x (Field of view = 2mm)
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Small microlites of plagioclase (sub-parallel to each other) in a Basalt. PPL image , 10x (Field of view = 2mm)
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Small microlites of plagioclase (sub-parallel to each other) in a Basalt. PPL image , 10x (Field of view = 2mm)
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Hornblende-bearing Andesite with Hyalopilitic groundmass. PPL image , 10x (Field of view = 2mm)
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Hornblende-bearing Andesite with Hyalopilitic groundmass. PPL image , 10x (Field of view = 2mm)
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Hornblende-bearing Andesite with Hyalopilitic groundmass. PPL image , 10x (Field of view = 2mm)
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Hornblende-bearing Andesite with Hyalopilitic groundmass. PPL image , 10x (Field of view = 2mm)
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Hornblende-bearing Andesite with Hyalopilitic groundmass. PPL image , 10x (Field of view = 2mm)
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Hornblende-bearing Andesite with Hyalopilitic groundmass. PPL image , 10x (Field of view = 2mm)
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Hornblende-bearing Andesite with Hyalopilitic groundmass. PPL image , 10x (Field of view = 2mm)
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Hornblende-bearing Andesite with Hyalopilitic groundmass. PPL image , 2x (Field of view = 7mm)
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Hornblende-bearing Andesite with Hyalopilitic groundmass. XPL image , 2x (Field of view = 7mm)
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Hornblende-bearing Andesite with Hyalopilitic groundmass. PPL image , 10x (Field of view = 2mm)
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Hornblende-bearing Andesite with Hyalopilitic groundmass. XPL image , 2x (Field of view = 7mm)
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Plagioclase in a Basalt with Hyalopilitic groundmass. PPL image , 2x (Field of view = 7mm)
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Plagioclase and Pyroxene in a Basalt with Hyalopilitic groundmass. PPL image , 2x (Field of view = 7mm)
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Plagioclase and Pyroxene in a Basalt with Hyalopilitic groundmass. PPL image , 2x (Field of view = 7mm)
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Plagioclase and Pyroxene in a Basalt with Hyalopilitic groundmass. PPL image , 2x (Field of view = 7mm)