     Igneous Rock Photos
Cochise College
Photos of Rocks
Geology Home Page

Roger Weller
wellerr@cochise.edu

Igneous Rock Table

Index
Number of photos: 538 Last edited: 4/17/18

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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Just credit photos to R.Weller/Cochise College.
copyright 2018-R.Weller