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Is pumice foliated?
Pumice is a light and porous volcanic rock formed when glassy lava solidifies rapidly. Some pumice clasts are known to be foliated.
What texture does a volcanic rock have?
Textures of volcanic rocks include aphantitic (mineral grains are present but microscopic) , porphyritic (some grains are visible to the naked eye), glassy (all or much of the rock lacks a crystalline structure), and vesicular (solidified gas bubbles are present).
Does gneiss have minerals in it?
Yes. All rocks, apart from coal and some glassy volcanic rocks, contain minerals.
Why would you expext to find some volcanic rock in the Himalayas?
The volcanic rock would be a mafic rock pushed up from the seafloor as the continents collided.
What are some mars fun facts?
Its broken down into volcanic provinces
What are some rocks that begin with the letter R?
· Rhyodacite - a volcanic rock
What is the luster of igneous rock?
i think that igneous and metamorphic rocks uses luster because maybe they have it in them
What rocks are volcanoes made up of?
Solid Rock and Magma
What are some hazards of volcanic eruptions?
lava flows clouds of ash hot volcanic gases landslides avalanches of mud snow and rock
What rock forms from lava?
Extrusive Rocks - From: bellany412:)
What color is volcanic rock?
Volcanic rocks are usually dark grey to black in colour - however some (like pumice) may be light grey.
Do minerals have glassy luster?
Some do some do not.
