Anukruti posted an MCQ
October 11, 2020 • 15:28 pm 30 points
  • IIT JAM
  • Geology (GG)

When the contents of microlites and glass become more or less equal,the texture is described as

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    Rahul kumar best-answer

    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. The proportion of microlites and groundmass is almost equal in hyalopilitic texture.

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    Sajan sarthak Best Answer

    More information The rocks can be entirely of crystals ( holocrystalline ), crystals and glass ( hypocrystalline or merocrystalline ) entirely of glass ( holohyaline ).  Vitrophyre is a volcanic rock with a porphyritic texture in which larger crystals are embedded in a glassy groundmass.  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.

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