Is obsidian rare?

Obsidian is found in many locations worldwide. It is confined to areas of geologically recent volcanic activity. Obsidian older than a few million years is rare because the glassy rock is rapidly destroyed or altered by weathering, heat, or other processes.

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Is obsidian a real thing?

Obsidian is an "extrusive" rock, which means it is made from magma that erupted out of a volcano. If it was an igneous rock that formed from magma underground and did not erupt, it would have been called an "intrusive" rock. Why is lava rock black? Rocks that cool quickly, especially the outer layers of a flow, are primarily composed of glass particles and tiny mafic minerals. This is why the outer surface of a flow is black. The most abundant felsic mineral in lava rock is plagioclase feldspar, which gives the surfaces a waxy luster.

Moreover, how much is a volcanic rock worth?

Yes, it has been named so officially because of the uncanny resemblance it bears with its namesake. The rock was reportedly discovered in November 2020. It is so rare that it is worth $10,000 (Rs 7,30,149) approximately. He is not guessing the price off-handedly. Correspondingly, what is lava stone made of? "Lava stone" may describe anything from a friable silicic pumice to solid mafic flow basalt, and is sometimes used to describe rocks that were never lava, but look as if they were (such as sedimentary limestone with dissolution pitting).

What does lava stone look like?

The lava stones are formed when volcanoes erupt. Imagine the lava shooting out of a volcano and pouring down the sides. When all that hot liquid eventually dries it forms lava stones. Typically black but also grey and brown, the stones have a porous surface with a honeycomb appearance.