Most commonly one expects the calcium-feldspar plagioclase as phenocryst.
Basalt
Basalt contains the greatest quantity of the mineral plagioclase feldspar.
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Basalt is a fine-grained volcanic rock, usually dark in color, while gabbro is a coarse-grained intrusive rock that is also dark in color. Basalt tends to cool and solidify quickly on the Earth's surface, resulting in a fine-grained texture, whereas gabbro cools slowly beneath the surface, allowing larger mineral crystals to form.
Basalt is a rock, not a mineral, and therefore does not have a crystal structure of it's own.
No. Calcite is not an igneous mineral. Basalt primarily consists of pyroxines and plagioclase with some olivine.
it is basalt
Basalt formations can be massive, encompassing many square miles. The mineral crystals which make up basalt require magnification to see.
Kilauea is a Volcano it errupts a type of lava called "basalt".Typicaly the mineral constituants of basalt are:quartz (less than 20%)feldspar (plagioclase)feldspathoidsamphibolepyroxineolivine
Basalt typically has a fine-grained texture, meaning that its individual mineral grains are too small to be seen with the naked eye. The crystals in basalt form due to rapid cooling of lava at the Earth's surface, resulting in a dense and homogeneous rock.
Basalt is a rock composed of minerals which are composed of elements.
mostly made of basalt.