basalt - typical non-vesicular basalt - hand/display specimen

Name: basalt - typical non-vesicular basalt - hand/display specimen
SKU: 257470651317
Price: 10.45 USD
Availability: InStock

$7.32

$10.45 -30%

Item ID 257470651317

Modified Item	No

Check the listing for details. basalt - typical non-vesicular basalt - hand/display specimen. Listed at 10.45 USD. Many basalt flows are vesicular, with large gas bubbles that were trapped when the lava cooled. Basalt is rich in magnesium and iron, poor in silica, allowing flows to move and cool rapidly. Silica makes lava sticky, so unlike basalt flows, an andesite magma, with over 50% silica, is reluctant to flow and plugs up volcanic vents, leading to explosive eruptions, in contrast to the basaltic lavas of Hawaii, where tourists can approach a vent with considerably less risk.

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