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Describe a porphyritic texture?

In: Geology, Laboratory Testing [Edit categories]

Answer:

A porphyritic texture is described as a rock with a fine-grained texture with a coarse-grained texture layered behind it.

First answer by SaintMike. Last edit by ID0000000000. Question popularity: 0 [recommend question].

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How do you determine the age of a porphyritic texture?
You cannot determine the age of a "texture". There are numerous methods for dating the age of rocks. Go to Geology.com and search for rock dating methods.
How would you describe the rock texture?
say whether its smooth or bumpy. Use some luster words. use a simile like it was as rough as sandpaper. Powdery, glassy, hard, or pearly.
Describe a pegmatite texture?
A coarse-grained granite,that is non vesicular, sometimes rich in rare elements such as uranium, tungsten, and tantalum.
What is the texture that describes igneous rocks?
The texture of an igneous rock varies between the rock. Obsidian has a glassy and smooth texture, while pumice has a very rough and porous texture. There is no one texture that describes all igneous...
Words to describe rock's texture?
Rocky. :) enjoi!