Giant's Causeway
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Haiku
Jedi Master
Columnar jointing is a result of forming crystals. Here is what Wikipedia says about them …
‘Columnar jointing is a geological structure where sets of intersecting closely spaced fractures, referred to as joints, result in the formation of a regular array of polygonal prisms, or columns. Columnar jointing occurs in many types of volcanic rocks and forms as the rock cools and contracts. Columnar jointing can occur in cooling lava flows and ashflow tuffs (ignimbrites), as well as in some shallow intrusions.
The columns can vary from 3 meters to a few centimeters in diameter, and can be as much as 30 meters tall. They are typically parallel and straight, but can also be curved and vary in diameter. Whereas an array of regular and straight columns is called a colonnade, an irregular array is termed an entablature. The number of sides of the individual columns can vary from 3 to 8, with 6 sides being the most common.’
All rocks (crystals and gemstones also) are formed by means of crystallization, usually deep under the crust where tectonic pressures and heat can easily do this. These are more evident around volcano’s where we can see the results closer to the surface of our planet. Iceland has many formation like these because of the volcanic nature of the island.
Crystallization is the (natural or artificial) process by which a solid forms, where the atoms or molecules are highly organized into a structure known as a crystal. Some of the ways by which crystals form are through precipitating from a solution, melting, or more rarely deposition directly from a gas. Attributes of the resulting crystal depend largely on factors such as temperature, air pressure, and in the case of liquid crystals, time of fluid evaporation. Another quote from Wikipedia on crystallization, …
‘Crystallization occurs in two major steps. The first is nucleation, the appearance of a crystalline phase from either a supercooled liquid or a supersaturated solvent. The second step is known as crystal growth, which is the increase in the size of particles and leads to a crystal state, …’
I think that these structures are fascinating, to say the least, Haiku …
‘Columnar jointing is a geological structure where sets of intersecting closely spaced fractures, referred to as joints, result in the formation of a regular array of polygonal prisms, or columns. Columnar jointing occurs in many types of volcanic rocks and forms as the rock cools and contracts. Columnar jointing can occur in cooling lava flows and ashflow tuffs (ignimbrites), as well as in some shallow intrusions.
The columns can vary from 3 meters to a few centimeters in diameter, and can be as much as 30 meters tall. They are typically parallel and straight, but can also be curved and vary in diameter. Whereas an array of regular and straight columns is called a colonnade, an irregular array is termed an entablature. The number of sides of the individual columns can vary from 3 to 8, with 6 sides being the most common.’
All rocks (crystals and gemstones also) are formed by means of crystallization, usually deep under the crust where tectonic pressures and heat can easily do this. These are more evident around volcano’s where we can see the results closer to the surface of our planet. Iceland has many formation like these because of the volcanic nature of the island.
Crystallization is the (natural or artificial) process by which a solid forms, where the atoms or molecules are highly organized into a structure known as a crystal. Some of the ways by which crystals form are through precipitating from a solution, melting, or more rarely deposition directly from a gas. Attributes of the resulting crystal depend largely on factors such as temperature, air pressure, and in the case of liquid crystals, time of fluid evaporation. Another quote from Wikipedia on crystallization, …
‘Crystallization occurs in two major steps. The first is nucleation, the appearance of a crystalline phase from either a supercooled liquid or a supersaturated solvent. The second step is known as crystal growth, which is the increase in the size of particles and leads to a crystal state, …’
I think that these structures are fascinating, to say the least, Haiku …
