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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.


What is basalt crystal size?

Basalt typically has a fine-grained crystal size, usually referred to as aphanitic, meaning the crystals are too small to be seen with the naked eye. This results in a smooth or glassy texture in basalt rocks.


What is the compactness of basalt?

very compact,crystal grains interlocked


State one observable characteristic other than crystal size that makes granite different from basalt?

Granite is typically light in color due to its high silica content and contains visible grains of minerals like quartz, feldspar, and mica. In contrast, basalt is typically dark in color, fine-grained, and contains minerals like pyroxene and olivine.


What makes basalt not a minerals?

Basalt consists of multiple minerals. Pyroxene, calcium-rich plagioclase, and sometimes olivine are key minerals in basalt. Basalt that cools rapidly may form glass, which contains no minerals because it lacks a crystal structure.


Why are the crystals in pillow basalt smaller than the crystals in basalt that forms in the ground?

Pillow basalt is formed from solidifying lava which erupts under the surface of a body of water. Because of this, it cools much faster, allowing less time for crystal growth.


What does basalt feel like?

Basalt feels like a smooth, dense and cool stone.


Which has smaller crystals basalt or granite?

Basalt typically has smaller crystals than granite. This is because basalt cools and solidifies quickly on the Earth’s surface, limiting crystal growth, while granite forms beneath the surface and has more time for larger crystals to develop.


Are basalt crystals large in size?

Basalt crystals are typically small to microscopic in size due to the rapid cooling of lava, which results in limited time for crystal growth. This rapid cooling process usually prevents the development of large crystals in basalts.


Why are crystals in basalt that formed under water smaller than those in basalt that formed on ground?

Crystals in basalt that formed underwater are smaller because they cool faster in the water, resulting in less time for the crystals to grow. On the other hand, crystals in basalt that formed on the ground have more time to grow as they cool more slowly, leading to larger crystal sizes.


What is Granite crystal?

Granite is an igneous rock with visible mineral crystals.


Type of crystal grain that forms when molten rocks cool slowly?

Visible or coarse.