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Giant's Causeway Column

Photo from Wikimedia Commons

Giant's Causeway Column

A hexagonal basalt pillar carved by cooling lava/Geology & Minerals

The Giant's Causeway in Northern Ireland consists of roughly 40,000 interlocking basalt columns formed by an ancient volcanic eruption about 60 million years ago. Most columns are hexagonal, though some have four, five, seven, or eight sides. A typical column is about 30 to 40 cm across and up to 12 meters tall. The remarkably regular geometry results from the slow, even cooling and contraction of thick lava flows. Legend attributes the causeway to the giant Finn McCool.

Measurements

Typical column height6 m
42.9 billionthsJupiter diameters
6.56Window widths
273Almond lengths

Tallest reach 12 m

Column diameter3.8 tenths m
633 millionAspirin molecules
4.5 thousandthsOlympic straights
1 millionViolet light wavelengths
Single column mass1,800 kg
581House bricks
300 billionthsGreat Pyramids of Giza

Estimated for 6 m column

Total columns40,000 columns
194Human skeletons
8,000Fingers on a hand
1.1 billionthsCells in a human body
Age1.9 quadrillion s
15.8 trillionHot Pocket cool-down periods
525 billionLunch breaks
1.9 quintillionCamera shutters

About 60 million years

Column cross-section1.1 tenths m^2
7.1 hundredthsTwin beds
2.7 hundredthsPing pong tables
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