How Is Basalt Formed?

Answer

Basalt is formed when melted lava released during volcanic eruptions cools and hardens. Basalt has a plain, gray, non-glassy appearance.
Q&A Related to "How Is Basalt Formed"
The rock basalt forms from the cooling and solidification of basaltic magma which is relatively high in iron and magnesium and relatively low in aluminum and silica when compared
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Vesicular basalts are essentially intermediate lithology between basalts and
http://www.chacha.com/question/how-is-vesicular-ba...
lava flows sometimes cool rapidly. When this happens, the rock solidifies and contracts. When it contracts as it solidifies, it leaves gaps in the rock which are often hexagonal in
http://answers.yahoo.com/question/index?qid=201105...
1. Note the rock's color. Basalt appears black or grayish-black, sometimes with a greenish or reddish crust. 2. Feel its texture. Basalt consists of a fine and even-grain. The dense
http://www.ehow.com/how_2155819_identify-basalt.ht...
1 Additional Answer
Basalt is formation of volcanic rock. The color of the basalt is grey and black with a grainy texture. The properties of the rock are composed of plagioclase, proxene and olivine.
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