Vitrophyric Texture

This is variety of inequigranular porphyritic texture in which larger crystals known as phenocrysts are embedded in a glassy ground mass.

Bibliography



• E. W. M. Heinrich (1956): Microscopic Petrografy. Mcgraw-hill book company,inc
• David Shelley (1983): Igneous and metamorphic rocks under the microscope. Campman & Hall editori.
• Vernon, R. H. & Clarke, G. L. (2008): Principles of Metamorphic Petrology. Cambridge University Press
• Shelley D (1992): Igneous and Metamorphic Rocks under the Microscope: Classification, textures, microstructures and mineral preferred orientation
• Cox et al. (1979): The Interpretation of Igneous Rocks, George Allen and Unwin, London.

Photo
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Vitrophyric Texture in an Andesite (Plagioclase and magnetite crystals). PPL image, 2x (Field of view = 7mm)
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Vitrophyric Texture in an Andesite (Plagioclase and magnetite crystals). PPL image, 2x (Field of view = 7mm)
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Vitrophyric Texture in an Andesite (Plagioclase and magnetite crystals). PPL image, 2x (Field of view = 7mm)
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Vitrophyric Texture in an Andesite. XPL image, 2x (Field of view = 7mm)
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Vitrophyric Texture in an Andesite (Plagioclase and magnetite crystals). PPL image, 2x (Field of view = 7mm)
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Vitrophyric Texture in an Andesite. XPL image, 2x (Field of view = 7mm)
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Vitrophyric Texture in an Andesite (Plagioclase and magnetite crystals). PPL image, 2x (Field of view = 7mm)
vitrofirica0125(19).jpg

Vitrophyric Texture in an Andesite (Plagioclase and magnetite crystals). PPL image, 2x (Field of view = 7mm)
vitrofirica0125(20).jpg

Vitrophyric Texture in an Andesite (Plagioclase and magnetite crystals). PPL image, 2x (Field of view = 7mm)
vitrofirica0125(21).jpg

Vitrophyric Texture in an Andesite (Plagioclase and magnetite crystals). PPL image, 2x (Field of view = 7mm)
vitrofirica0125(22).jpg

Vitrophyric Texture in an Andesite. XPL image, 2x (Field of view = 7mm)
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Vitrophyric Texture in an Andesite (Plagioclase and Pyroxene crystals). PPL image, 10x (Field of view = 2mm)
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Phenocrysts embedded in a glassy ground mass. PPL image, 2x (Field of view = 7mm)
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Phenocrysts embedded in a glassy ground mass. PPL image, 2x (Field of view = 7mm)
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Phenocrysts embedded in a glassy ground mass. PPL image, 2x (Field of view = 7mm)
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Phenocrysts embedded in a glassy ground mass (with magmatic flow). PPL image, 2x (Field of view = 7mm)
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Phenocrysts embedded in a glassy ground mass. XPL image, 2x (Field of view = 7mm)
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Phenocrysts embedded in a glassy ground mass (with magmatic flow). PPL image, 2x (Field of view = 7mm)
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Phenocrysts embedded in a glassy ground mass. XPL image, 2x (Field of view = 7mm)