To view a collection of extrusive rocks and learn more about them, check out this web page: VOCABULARY Crystal erosion Intrusive deposition Rock Extrusive compaction Mineral Lava lithification Geology Magma glacier Colour Pluton striations Streak volcano carbonic acid Lustre basalt dunes Hardness granite talus slope Cleavage mechanical mass wasting Magnetism weathering lichen Clarity chemical parent rock Igneous weathering delta Sedimentary biological crust Metamorphic weathering
To view a collection of extrusive rocks and learn more about them, check out this web page: VOCABULARY Rock Mineral Geology Colour Streak Lustre Hardness Cleavage Magnetism Clarity Igneous Sedimentary Metamorphic Crystal Intrusive Extrusive Lava Magma Pluton volcano basalt granite mechanical weathering chemical weathering biological weathering erosion deposition compaction lithification glacier striations carbonic acid dunes talus slope mass wasting lichen parent rock delta crust