Columnar Basalt

[ᎶuᏒᎥ jᎪsᎳᎪᏞ]

Columnar Basalt

Columnar Basalts are rock formations resulting from the sudden cooling of lava flow. These are formed in a random cellular network though the equally distributed sides is six, giving the hexagonal structures as it is man made Hexagonal shape. It is a dark black or grey colored rock, having silica and comparatively rich in iron and magnesium. Some basalts are crystal clear and many are very fine-grained and compact. Basaltic lavas may be soft or pumice-like. Olivine and augite are the most common minerals. In basalt 45 to 50 % silica and in remaining, Iron, alumunium, and other mineral are found.


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[JJ]