Lab Specimens - Rocks
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Minerals
these minerals are some that make up igneous rocks:

Quartz
Biotite Mica
Feldspar
Hornblende

Granite
Gabbro

Rhyolite
Basalt

Obsidian
Pumice
Scoria

 

Sandstone
Conglomerates
Shale

Selenite
Limestone
Halite

Tufa (Travertine)
Diatomite
- What are diatoms?

Gneiss
Slate
Marble
Metavolcanic Rock