Graphic texture

Graphic texture is commonly created by exsolution and devitrification and immiscibility processes in igneous rocks. It is called 'graphic' because the exsolved or devitrified minerals form wriggly lines and shapes which are reminiscent of writing.

Additional recommended knowledge

Recognize and detect the effects of electrostatic charges on your balance

Don't let static charges disrupt your weighing accuracy

What is the Correct Way to Check Repeatability in Balances?

Trachyte is a volcanic rock which typically has graphic texture. Devitrified obsidian and other volcanic glasses typically develop graphic textures; pepperite is a typical rock formed by this process.

Graphic granite is a leucocratic granitic rock consisting of alkali feldspar with exsolved quartz typically forming a distinctive repetitive pattern sometimes resembling hieroglyphics.

Exsolved magnetite has graphic texture, as do some exsolution textures of pyroxene, pyrite feldspar and rarely other minerals.

See also

• Volcanic rocks
• List of minerals
• List of rock textures
• Igneous microstructure - graphic texture