Where is Blue Quartz Granite found?
Granite with blue quartz inclusions
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Open the appBlue Quartz Granite occurs in specific geological environments. Knowing where to look, and in what kind of rock, is the difference between going home empty-handed and finding a great specimen.
Where to find Blue Quartz Granite
Blue Ridge Mountains, USA
Specific localities within the Appalachian Mountains, particularly in Virginia and North Carolina, are known for granites containing blue quartz, often associated with Precambrian basement rocks.
Scandinavia (e.g., Norway, Sweden)
Certain Precambrian shield areas in Scandinavia host granitic intrusions with blue quartz, sometimes referred to as 'Larvikite' (though Larvikite is technically a monzonite, some granites in the region can have blue quartz).
Brazil
Some granite quarries in Brazil produce varieties with blue quartz, often used in the dimension stone industry.
India
Certain regions in India, particularly in the southern states, have granitic occurrences with blue quartz.
Collecting tips
- Look for Coarse Grains. Granite is a coarse-grained rock. Look for individual mineral crystals that are visible to the naked eye.
- Identify Quartz. Quartz is typically glassy, translucent to transparent, and lacks cleavage. In Blue Quartz Granite, these grains will have a distinct blue hue.
- Identify Feldspar. Feldspars are usually opaque to translucent, white, pink, or gray, and exhibit two cleavage planes at nearly 90 degrees.
- Identify Mica. Mica appears as dark (biotite) or light (muscovite) flaky minerals with perfect basal cleavage.
- Check for Intrusive Settings. Blue Quartz Granite is found in large igneous intrusions, often exposed in mountain ranges or eroded continental shields.
Quick Check
- Color:
- Dominantly light-colored (white, pink, gray) with distinct blue glassy grains.
- Luster:
- Vitreous (glassy) for quartz, pearly for feldspar, silky for mica.
- Streak:
- White (for quartz and feldspar), colorless to pale brown (for mica).
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