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Pitchstone

Index Pitchstone

Pitchstone is a dull black glassy volcanic rock formed when felsic lava or magma cools quickly. [1]

20 relations: An Sgùrr (Eigg), Bronze Age, Conchoidal fracture, Eigg, Erosion, Extrusive rock, Felsic, Geology of Scotland, International Union of Geological Sciences, Isle of Arran, Lava, Lustre (mineralogy), Magma, Mesolithic, Neolithic, Obsidian, Resin, Ridge, University of Edinburgh, Volcanic rock.

An Sgùrr (Eigg)

An Sgùrr is the highest hill on the Inner Hebridean island of Eigg, Lochaber, Highland, Scotland.

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Bronze Age

The Bronze Age is a historical period characterized by the use of bronze, and in some areas proto-writing, and other early features of urban civilization.

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Conchoidal fracture

Conchoidal fracture describes the way that brittle materials break or fracture when they do not follow any natural planes of separation.

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Eigg

Eigg (italic) is one of the Small Isles, in the Scottish Inner Hebrides.

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Erosion

In earth science, erosion is the action of surface processes (such as water flow or wind) that remove soil, rock, or dissolved material from one location on the Earth's crust, and then transport it to another location (not to be confused with weathering which involves no movement).

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Extrusive rock

Extrusive rock refers to the mode of igneous volcanic rock formation in which hot magma from inside the Earth flows out (extrudes) onto the surface as lava or explodes violently into the atmosphere to fall back as pyroclastics or tuff.

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Felsic

In geology, felsic refers to igneous rocks that are relatively rich in elements that form feldspar and quartz.

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Geology of Scotland

The geology of Scotland is unusually varied for a country of its size, with a large number of differing geological features.

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International Union of Geological Sciences

The International Union of Geological Sciences (IUGS) is an international non-governmental organization devoted to international cooperation in the field of geology.

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Isle of Arran

Arran (Eilean Arainn) or the Isle of Arran is the largest island in the Firth of Clyde and the seventh largest Scottish island, at.

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Lava

Lava is molten rock generated by geothermal energy and expelled through fractures in planetary crust or in an eruption, usually at temperatures from.

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Lustre (mineralogy)

Lustre or luster is the way light interacts with the surface of a crystal, rock, or mineral.

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Magma

Magma (from Ancient Greek μάγμα (mágma) meaning "thick unguent") is a mixture of molten or semi-molten rock, volatiles and solids that is found beneath the surface of the Earth, and is expected to exist on other terrestrial planets and some natural satellites.

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Mesolithic

In Old World archaeology, Mesolithic (Greek: μέσος, mesos "middle"; λίθος, lithos "stone") is the period between the Upper Paleolithic and the Neolithic.

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Neolithic

The Neolithic was a period in the development of human technology, beginning about 10,200 BC, according to the ASPRO chronology, in some parts of Western Asia, and later in other parts of the world and ending between 4500 and 2000 BC.

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Obsidian

Obsidian is a naturally occurring volcanic glass formed as an extrusive igneous rock.

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Resin

In polymer chemistry and materials science, resin is a "solid or highly viscous substance" of plant or synthetic origin that is typically convertible into polymers.

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Ridge

A ridge or mountain ridge are geological features consisting of a chain of mountains or hills that form a continuous elevated crest for some distance.The sides of the ridge slope away from narrow top on either side.The line along the crest formed by the highest points, with the terrain dropping down on either side, is called the ridgeline.

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University of Edinburgh

The University of Edinburgh (abbreviated as Edin. in post-nominals), founded in 1582, is the sixth oldest university in the English-speaking world and one of Scotland's ancient universities.

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Volcanic rock

Volcanic rock (often shortened to volcanics in scientific contexts) is a rock formed from magma erupted from a volcano.

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References

[1] https://en.wikipedia.org/wiki/Pitchstone

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