hexagonal column

hexagonal column

[hek′sag·ə·nəl ′käl·əm]
(meteorology)
One of the many forms in which ice crystals are found in the atmosphere; this crystal habit is characterized by hexagonal cross-section in a plane perpendicular to the long direction (principal axis, optic axis, or c axis) of the columns; it differs from that found in hexagonal platelets only in that environmental conditions have favored growth along the principal axis rather than perpendicular to that axis.
References in periodicals archive ?
ON A PEDESTAL--This three-dimensional, simulated ice crystal resembles a common, simple type of natural snowflake: a hexagonal column whose faces are indented because they grow more slowly than the column's edges.
Choose from the following and call 0901 380 1288 to make your bid - a) pounds 960, b) pounds 450 or c) pounds 1,800 Lot Eight: A 1950s table lamp with geometric stylising on hexagonal column, topped by a pale pink circular globe.
It's a big hexagonal column housing a series of computers that are running an artificial universe.
These impressive hexagonal columns were formed inside a slow-cooling lava flow and similar formations can be found on the Hebridean island of Staffa and at the Giant's Causeway in Northern Ireland.
But when it's aligned in 40,000 huge hexagonal columns marching into the sea it's absolutely magical.
Using 3D printing to create parts of his work to give detail that he could not achieve by hand, he includes hexagonal granulation and intertwining hexagonal columns.
The glass melts over 1,681 hexagonal columns to take on an internal honeycomb structure that maintains stiffness while eliminating 80% of the weight.
19 DEVILS POSTPILE NATIONAL MONUMENT Geology meets geometry in a massive rock formation of hexagonal columns formed by an ancient lava flow.
From Belfast, many CIE Tours include a tour of the glorious Antrim coast, where you'll witness the natural wonder of the Giant's Causeway, hexagonal columns of layered basalt stone, which formed from a volcanic eruption 60 million years ago; and the nine Glens of Antrim, lush, green places that delight the senses.
Frank went to the source, a basalt escarpment three hundred miles away, in the dry country of eastern Washington, near Moses Lake, where a giant machine could pluck the nine individual stone spires a dozen feet tall from where they had crystallized over ten million years ago into hexagonal columns that had weathered to a rusty brown.
The torch was at the World Heritage site's hexagonal columns of rock, held aloft by Denis Broderick high above the Atlantic on Carrick a Rede rope bridge.