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Igneous Rock Textures

From Andrew Alden,
Your Guide to Geology.
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The texture of a rock refers to the details of its visible character—the size and quality and interrelations of its grains and the fabric they form. Larger-scale features, such as fractures and layering, are considered rock structures.

Igneous Rocks in a Nutshell

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Phaneritic Texture	Aphanitic Texture	Glassy Texture
Equigranular Texture	Porphyritic Texture	Vesicular Texture
Pyroclastic Texture

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Advertising Info \| News & Events \| Work at About \| SiteMap \| Reprints \| Help	Our Story \| Be a Guide
User Agreement \| Ethics Policy \| Patent Info. \| Privacy Policy	©2008 About, Inc., A part of The New York Times Company. All rights reserved.