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Trachyte - Wikipedia

Trachyte is an igneous volcanic rock with an aphanitic to porphyritic texture. It is the volcanic equivalent of syenite. The mineral assemblage consists of essential.

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Trachyte: Mineral information, data and localities. - Mindat

Trachytic rocks, with felsics comprising 0-5% quartz and alkali feldspar/total feldspar: 0.65-0.9 A group of fine-grained, generally porphyritic, .

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Trachyte | rock | Britannica

Trachyte: Trachyte, light-coloured, very fine-grained extrusive igneous rock that is composed chiefly of alkali feldspar with minor amounts of dark-coloured.

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Trachyte - Geology - rocks and minerals

Trachyte is an extrusive rock, belonging to the alkali series of intermediate volcanic rocks. The major mineral component of trachyte is alkali feldspar (e.g..

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ALEX STREKEISEN-Trachyte-

Trachyte is a fine-grained and generally light-colored volcanic rock that usually has a rough surface to the touch which is the reason it was given that name.

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