Igneous
Granite
Granite
Hardness 6-7, granular texture, light colored, composed mainly of quartz, feldspar, and mica.
Identified More igneous →
Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness 6-7, granular texture, light colored, composed mainly of quartz, feldspar, and mica.
Formation & geological history
Formed from the slow cooling of magma deep underground.
Uses & applications
Used in construction, monuments, countertops, and decorative elements.
Geological facts
Granite is a very common igneous rock on Earth's surface.
Field identification & locations
Identify by its large crystals and speckled appearance. Common worldwide.
More like this
Other igneous specimens
Granite
Granite
Igneous
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
mineral
Dalmatian Jasper
Aplite with Arfvedsonite inclusions
igneous
Dark Igneous Rock (Likely Basalt or Diabase)
Basalt (extrusive igneous rock) or Diabase (intrusive igneous rock - also known as Dolerite), largely composed of plagioclase feldspar, pyroxene (augite), and sometimes olivine and amphibole. Exact mineralogy would require thin section analysis.
Igneous
Magnetite
Iron(II,III) oxide (Fe3O4)
mineral
Blue Apatite
Apatite (Group), Ca5(PO4)3(F,Cl,OH)
mineral