     Igneous Rock Photos
Cochise College
Photos of Rocks
Geology Home Page

Roger Weller
wellerr@cochise.edu

Igneous Rock Table (shows relationships)

Index
Number of photos: 538 Last edited: 4/17/18
Quick Tour: 10 Common Igneous Rocks

glassy

pumice (29)

perlite (14)
fine grained (aphanitic)
andesite (29)

    basalt (62)
    dacite (2)
    diabase (6)
    phonolite (2)
    rhyolite (30)
    trachyte (4)
    tuff (42)
    lithophysa (21)

coarse grained (phaneritic)
    anorthosite (4)
    aplite (2)
    diorite (33)
    dunite (2)
    gabbro (26)

    granite (66)
    kimberlite (2)
    monzonite (17)
    peridotite (6)
    pyroxenite (2)
    syenite (10)
very coarse grained

porphyritic

porphyry (19)

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