Classifying igneous rocks | Describing composition and texture

00:00 Introduction
00:54 Phaneritic (coarse-grained) texture
03:24 Pegmatitic texture
04:26 Aphanitic (fine-grained) texture
07:40 Porphyritic (bi-modal) texture
10:55 Glassy texture
12:58 Vesicular / porous texture
17:17 Fragmental / pyroclastic texture
19:07 Composition: Proportions of minerals
22:13 Classifying igneous rocks (how to give them a name!)

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