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A few varieties including basalt, obsidian, and scoria.

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11y ago

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What is definition of the word rhyolite?

Rhyolite is an igneous, black volcanic rock.


How did Black Rock get its name?

Black Rock received its name from a large black volcanic rock formation located on its coast. This distinctive rock was used as a navigational landmark by early travelers in the area, leading to the area being known as Black Rock.


What about black rock in the desert?

The black rock, in most cases, is basalt, a volcanic lava that was left in the desert by ancient eruptions in these desert area.


What color is volcanic rock?

Volcanic rock can come in a variety of colors, including black, grey, brown, red, and green. The color of volcanic rock is influenced by factors such as the mineral composition, cooling rate, and presence of other elements or compounds.


What is an intrusive black rock found in the ocean?

An intrusive black rock found in the ocean is likely basalt, which is a common volcanic rock formed from cooled lava flows. Basalt is known for its dark color and can be found in underwater volcanic eruptions and oceanic crust formations.


What is a smooth glassy black igneous rock?

The rock you are describing is likely obsidian. Obsidian is a naturally occurring volcanic glass formed during rapid cooling of lava. It is usually black in color and has a smooth, glassy texture.


Can you make fire with volcanic rock?

No. Volcanic rock is not flammable.


Why would you find a volcanic rock on a volcanic island?

Volcanic islands are formed by volcanoes and are therefore composed of volcanic rock.


What is the formation of black sand in the pacific coast?

Black sand is formed from volcanic minerals like basalt and lava that have eroded over time. As volcanic rocks break down, they create tiny black grains that make up black sand beaches along the Pacific coast. These beaches are common in areas with active or historic volcanic activity.


Volcanic rock a compound or nonmetallic?

Niether. Volcanic rock is a mixture.


What is a rock that starts with a k?

Kimberlite is a volcanic rock. Kenyte is a volcanic rock found on Mount Kenya.


What color is mt Krakatoa?

Mount Krakatoa varies in color depending on the volcanic activity and the specific minerals present in the rock. It may appear gray, black, or reddish-brown due to the volcanic rock and ash covering its surface.