Fandom

Geology Wiki

Graphic texture

519pages on
this wiki
Add New Page
Talk0 Share

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 lines and shapes which are reminiscent of writing.

Trachyte is a volcanic rock which typically has graphic texture. Devitrified obsidian and other volcanic glasses typically develop graphic textures; peperite 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 cuneiform writing. Experiments have shown that graphic granite texture is derived from large single crystals of quartz and feldspar interleaving to create the cuneiform illusion.[1]

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

See alsoEdit

ReferencesEdit

Template:Reflist

External linksEdit


Cite error: <ref> tags exist, but no <references/> tag was found

Ad blocker interference detected!


Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.