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Most commonly one expects the calcium-feldspar plagioclase as phenocryst.

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What is the first mineral to form when magma starts crystalizing at 1200C?

Basalt


Is Basalt contains the greatest quantity of which mineral?

Basalt contains the greatest quantity of the mineral plagioclase feldspar.


What mineral group is Basalt in?

jli


How does a basalt differ from gabbro?

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.


What is the shape of the basalt?

Basalt is a rock, not a mineral, and therefore does not have a crystal structure of it's own.


Does basalt have sodium in it?

No. Calcite is not an igneous mineral. Basalt primarily consists of pyroxines and plagioclase with some olivine.


What is the main mineral type of oceanic plates?

it is basalt


How small is basalt?

Basalt formations can be massive, encompassing many square miles. The mineral crystals which make up basalt require magnification to see.


What are kilauea's mineral contents?

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


What is basalt's grain size?

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.


Is basalt an element a mineral or a rock?

Basalt is a rock composed of minerals which are composed of elements.


What is the main mineral type that the oceanic plates are made of?

mostly made of basalt.