igneous
Granite with Mafic Dike
Intrusive igneous rock with xenolith or intrusive dike
AI-generated identification · may be incorrectHardness 6-7 on Mohs scale, phaneritic texture with visible crystals, pink to gray color, dull to vitreous luster.
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Physical properties
Hardness 6-7 on Mohs scale, phaneritic texture with visible crystals, pink to gray color, dull to vitreous luster.
Formation & geological history
Formed by the slow cooling of magma beneath the Earth's crust, later cut by a finer-grained mafic intrusion.
Uses & applications
Used in construction, architectural facades, and monuments.
Geological facts
The contrasting dark band represents a younger injection of basaltic or diabasic magma cutting through older granitic rock.
Field identification & locations
Identified by interlocking quartz, feldspar, and mica crystals crossed by a distinct dark vein. Common in continental shields.
