Igneous rock the partial melting of rocks within the mantle and crust. Extrusive igneous rocks cool and solidify quicker than intrusive igneous rocks. They are formed by the cooling of molten magma on the earth's surface. The magma, which is brought to the surface through fissures or volcanic eruptions, solidifies at a faster rate. Hence such rocks are smooth, crystalline and fine-grained. Basalt is a common extrusive igneous rock and forms lava flows, lava sheets and lava plateaus. Some kinds of basalt solidify to form long polygonal columns. The Giant's Causeway in Antrim, Northern Ireland is an example. The molten rock, with
Bodorna Rock Columns Natural Monument Bodorna Rock Columns Natural Monument Bodorna Rock Columns Natural Monument () is a rock pillar with a height of 15 m and diameter 4 m near village Bodorna of Dusheti Municipality, Mtskheta-Mtianeti Georgia at a distance of 70-80 m from the S3 highway (Georgia) at 813 m above sea level. Natural monument is located approximately 150-200 m from Bodorna Church of Saint Virgin Mary built in the XVII century and is overlooking the Aragvi valley from the river right bank on the slopes of eastern exposure. Locally this deemed natural tower is known as "Tsotsola Rock" and rumored to have