igneous
Pegmatite
Igneous Pegmatite
AI-generated identification · may be incorrectHardness of 6-7 on Mohs scale; displays a mix of white feldspar and shiny grey quartz with a vitreous luster.
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Physical properties
Hardness of 6-7 on Mohs scale; displays a mix of white feldspar and shiny grey quartz with a vitreous luster.
Formation & geological history
Formed from cooling magma deep within the Earth's crust, commonly found in the Grenville Province near the Ottawa region.
Uses & applications
Source of industrial minerals, rare elements, and mineral specimens for collectors.
Geological facts
Pegmatites often host exceptionally large crystals due to slow cooling in water-rich magma environments.
Field identification & locations
Identify by large, interlocking crystal grains showing contrasting white and reflective grey areas.
