Transcript Identifying Rocks

Identifying Rocks

You will be identifying a number of rock
samples. The following tables will help
you organize the rock samples. Please
copy these tables in your science
journal.
Igneous Rock Samples
Igneous Rocks
Basalt (E)
Pumice (E)
Scoria (E)
Gabbro (I)
Granite (I)
Obsidian (E)
Rhyolite (E)
Porphyry (E & I)
Igneous Rock Classification
Igneous Rocks
Intrusive
Porphyry
•Cools slowly
Mixed cooling
•Large crystals
Mixed crystals
Extrusive
•Cools quickly
•Small if any
crystals
Sedimentary Rock Samples
Sedimentary Rocks
Chemical Limestone
(Ch)
Shale (Cl)
Organic Limestone (O)
Sandstone (Cl)
Coal (O)
Breccia (Cl)
Dolostone (Ch)
Conglomerate (Cl)
Sedimentary Rock
Classification
Sedimentary Rocks
Clastic
(Pieces put
together)
Chemical
Organic
(Once living)
Metamorphic Rock Samples
Metamorphic Rocks
Slate (F)
Schist (F)
Gneiss (F)
Quartzite (NF)
Marble (NF)
Metamorphic Rock
Classification
Metamorphic Rocks
Foliated
Non-Foliated
(fold lines/ break lines)
Use these tables to help you
identify the rock samples.
Good Luck!