Types
Nepheline-Basanite, Analcite-Basanite and Leucite-Basanite
Semi-anthracite and Meta-anthracite
Features
Clasts are smooth to touch, Easily splits into thin plates, Has High structural resistance against erosion and climate, Used as a touchstone
Helps in production of Heat and Electricity, Used as fossil fuel
Archaeological Significance
Monuments
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Famous Monuments
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Sculpture
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Famous Sculptures
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Pictographs
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Petroglyphs
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Figurines
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Fossils
Absent
Absent