igneous
Graphic Granite
Graphic Granite (Pegmatitic Alkali Feldspar and Quartz)
AI-generated identification · may be incorrectHardness 6-7 on Mohs scale; pink to tan feldspar matrix with intergrown grayish quartz crystals resembling cuneiform or ancient writing; vitreous luster; specific gravity ~2.6.
Identified More igneous →
Explore Graphic Granite in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness 6-7 on Mohs scale; pink to tan feldspar matrix with intergrown grayish quartz crystals resembling cuneiform or ancient writing; vitreous luster; specific gravity ~2.6.
Formation & geological history
Forms in late-stage crystallization of granitic magmas, specifically in pegmatites, where quartz and feldspar crystallize simultaneously.
Uses & applications
Used primarily as an ornamental stone, in lapidary arts, and as an educational geological specimen for mineral intergrowth studies.
Geological facts
The unique cuneiform-like pattern results from simultaneous growth of quartz and feldspar from a melt, often called runite.
Field identification & locations
Easily identified by its distinctive graphic-like quartz inscriptions embedded within a feldspar host; commonly found globally in pegmatite dikes.
