Vitrophyric Texture
This is variety of inequigranular porphyritic texture in which larger crystals known as phenocrysts are embedded in a glassy ground mass.
Bibliography
• Cox et al. (1979): The Interpretation of Igneous Rocks, George Allen and Unwin, London.
• Howie, R. A., Zussman, J., & Deer, W. (1992). An introduction to the rock-forming minerals (p. 696). Longman.
• Le Maitre, R. W., Streckeisen, A., Zanettin, B., Le Bas, M. J., Bonin, B., Bateman, P., & Lameyre, J. (2002). Igneous rocks. A classification and glossary of terms, 2. Cambridge University Press.
• Middlemost, E. A. (1986). Magmas and magmatic rocks: an introduction to igneous petrology.
• Shelley, D. (1993). Igneous and metamorphic rocks under the microscope: classification, textures, microstructures and mineral preferred-orientations.
• Vernon, R. H. & Clarke, G. L. (2008): Principles of Metamorphic Petrology. Cambridge University Press.
Photo
![vitrofirica0125(12).jpg](/immagini/vulc/piccole/vitrofirica0125(12).jpg)
Vitrophyric Texture in an Andesite (Plagioclase and magnetite crystals). PPL image, 2x (Field of view = 7mm) |
![vitrofirica0125(13).jpg](/immagini/vulc/piccole/vitrofirica0125(13).jpg)
Vitrophyric Texture in an Andesite (Plagioclase and magnetite crystals). PPL image, 2x (Field of view = 7mm) |
![vitrofirica0125(14).jpg](/immagini/vulc/piccole/vitrofirica0125(14).jpg)
Vitrophyric Texture in an Andesite (Plagioclase and magnetite crystals). PPL image, 2x (Field of view = 7mm) |
![vitrofirica0125(15).jpg](/immagini/vulc/piccole/vitrofirica0125(15).jpg)
Vitrophyric Texture in an Andesite. XPL image, 2x (Field of view = 7mm) |
![vitrofirica0125(16).jpg](/immagini/vulc/piccole/vitrofirica0125(16).jpg)
Vitrophyric Texture in an Andesite (Plagioclase and magnetite crystals). PPL image, 2x (Field of view = 7mm) |
![vitrofirica0125(17).jpg](/immagini/vulc/piccole/vitrofirica0125(17).jpg)
Vitrophyric Texture in an Andesite. XPL image, 2x (Field of view = 7mm) |
![vitrofirica0125(18).jpg](/immagini/vulc/piccole/vitrofirica0125(18).jpg)
Vitrophyric Texture in an Andesite (Plagioclase and magnetite crystals). PPL image, 2x (Field of view = 7mm) |
![vitrofirica0125(19).jpg](/immagini/vulc/piccole/vitrofirica0125(19).jpg)
Vitrophyric Texture in an Andesite (Plagioclase and magnetite crystals). PPL image, 2x (Field of view = 7mm) |
![vitrofirica0125(20).jpg](/immagini/vulc/piccole/vitrofirica0125(20).jpg)
Vitrophyric Texture in an Andesite (Plagioclase and magnetite crystals). PPL image, 2x (Field of view = 7mm) |
![vitrofirica0125(21).jpg](/immagini/vulc/piccole/vitrofirica0125(21).jpg)
Vitrophyric Texture in an Andesite (Plagioclase and magnetite crystals). PPL image, 2x (Field of view = 7mm) |
![vitrofirica0125(22).jpg](/immagini/vulc/piccole/vitrofirica0125(22).jpg)
Vitrophyric Texture in an Andesite. XPL image, 2x (Field of view = 7mm) |
![vitrofirica0125(23).jpg](/immagini/vulc/piccole/vitrofirica0125(23).jpg)
Vitrophyric Texture in an Andesite (Plagioclase and Pyroxene crystals). PPL image, 10x (Field of view = 2mm) |
![ooloialinaa(9).jpg](/immagini/vulc/piccole/ooloialinaa(9).jpg)
Phenocrysts embedded in a glassy ground mass. PPL image, 2x (Field of view = 7mm) |
![ooloialinaa(10).jpg](/immagini/vulc/piccole/ooloialinaa(10).jpg)
Phenocrysts embedded in a glassy ground mass. PPL image, 2x (Field of view = 7mm) |
![ooloialinaa(11).jpg](/immagini/vulc/piccole/ooloialinaa(11).jpg)
Phenocrysts embedded in a glassy ground mass. PPL image, 2x (Field of view = 7mm) |
![vitrofiricapeperino(4).jpg](/immagini/vulc/piccole/vitrofiricapeperino(4).jpg)
Phenocrysts embedded in a glassy ground mass (with magmatic flow). PPL image, 2x (Field of view = 7mm) |
![vitrofiricapeperino(2).jpg](/immagini/vulc/piccole/vitrofiricapeperino(2).jpg)
Phenocrysts embedded in a glassy ground mass. XPL image, 2x (Field of view = 7mm) |
![vitrofiricapeperino(3).jpg](/immagini/vulc/piccole/vitrofiricapeperino(3).jpg)
Phenocrysts embedded in a glassy ground mass (with magmatic flow). PPL image, 2x (Field of view = 7mm) |
![vitrofiricapeperino(5).jpg](/immagini/vulc/piccole/vitrofiricapeperino(5).jpg)
Phenocrysts embedded in a glassy ground mass. XPL image, 2x (Field of view = 7mm) |