Fine Grained, Gray-Black Basalt Volcanic Rock – 2 Pieces Mineral Specimen
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Fine Grained, Gray-Black Basalt Volcanic Rock – 2 Pieces Mineral Specimen

$3.39

Fine Grained, Gray-Black Basalt Volcanic Rock – 2 Pieces Mineral Specimen

10 in stock

Description

Fine Grained Gray-Black Basalt Rock, 2 Pieces

Each Rock Measures Approx. 1-2 Inches in Length
by American Educational Products

An igneous, or volcanic, rock that formed due to the rapid cooling of lava that has been exposed to the open air or near the surface, it features a glassy matrix that is interspersed with minerals. Usually grey to black in color, it is known to weather rapidly to a brown or red because of the oxidization of the iron-rich minerals that are contained within it.

It is typically defined by both its mineral content, and texture. The fine grained variety of basalt is due to the molten rock cooling at an extremely high pace, which prevents mineral crystals from growing too large. Each rock measures approximately 1-2 inches in length. 

Origin: CO

Additional Information
Weight 0.091 kg
Manufacturer

American Educational Products

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