Graphic granite is an igneous rock characterized by a distinctive intergrowth of quartz and alkali feldspar that resembles cuneiform writing or ancient script. These patterns are created by the simultaneous crystallization of the two minerals in a pegmatitic environment. It is highly prized by lapidary enthusiasts for its unique aesthetic, especially when cut and polished into cabochons or decorative items.
Is this graphic granite?
5-step field checkRun through these checks against the specimen in your hand. The more boxes tick, the more confident the ID.
- 1Test the hardnessTry to scratch graphic granite with a known reference. Graphic Granite sits at Mohs 6-7, softer than the next harder reference, harder than the previous one.
- 2Check the streakDrag the specimen across an unglazed porcelain plate. Graphic Granite leaves a white streak.
- 3Read the lusterHold the specimen under a strong light. Graphic Granite typically shows a vitreous luster.
- 4Match the color rangeCompare against the expected color range: white, gray, pink, tan.
- 5Look at form & habitTypical habit: massive.
Often confused with
Graphic Granite vs. its common look-alikes, and how to tell them apart in the field.
Often found alongside graphic granite
Minerals reported to co-occur with graphic granite. Spotting these in float or country rock is a strong cue you are in the right ground.
All properties
- Mohs hardness
- 6-7
- Density
- 2.6-2.7 g/cm³
- Streak
- White
- Luster
- Vitreous
- Transparency
- Opaque
- Crystal habit
- Massive
- Cleavage
- None
- Rarity
- Common
- Uses
- Collector, Lapidary, Decorative
- Host rock
- Granite Pegmatites
- Typical price
- $5-50 for small specimens, higher for large decorative slabs
Where rockhounds find graphic granite
1 mapped spotsClassic worldwide localities
- USA
- Brazil
- Madagascar
- Russia
- Sweden
Field-hunting tip
Look in granite pegmatites country, the host setting where graphic granite typically forms. If you start seeing quartz, orthoclase, microcline in float, you are in the right ground. Field specimens usually show a massive habit, so train your eye for that shape before scanning the outcrop. In the U.S., the densest reported localities are in Colorado. Start trip planning there.
Common questions
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Find graphic granite on the map
RockHoundR shows mapped rockhounding spots, access rules, and lets you log every find.
