an Intrusive Igneous Rock
Composition
Quartz: 20 to 60% Feldspar: 10 to 65% Mica: 5 to 15% Hornblende, Tourmaline, Zircon: remaining
Identification
Colour: Light - white, pink or grey Texture: Course grained, visible crystals Hardness: Very hard
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an Intrusive Igneous Rock
Quartz: 20 to 60% Feldspar: 10 to 65% Mica: 5 to 15% Hornblende, Tourmaline, Zircon: remaining
Colour: Light - white, pink or grey Texture: Course grained, visible crystals Hardness: Very hard