Quartz and Basalt look-alikes
SiO2 (Quartz) and Basalt (Igneous Rock)
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Open the appSeveral rocks and minerals can be confused with Quartz and Basalt. Below are documented look-alikes and the features that tell them apart. Never rely on a single feature. Always check multiple properties.
Similar rocks to compare
Chert
Cryptocrystalline Silicon Dioxide (SiO2)
Also known as: Flint, Jasper, Agate
Granite
Granite (Quartz, Feldspar, Mica)
Also known as: Felsic Intrusive Rock
Gabbro
Gabbro (Plagioclase, Pyroxene, Olivine)
Also known as: Mafic Intrusive Rock
Andesite
Andesite (Plagioclase, Pyroxene, Amphibole)
Also known as: Intermediate Volcanic Rock
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