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Is black obsidian rare?

Is black obsidian rare?

Pure black obsidian can be quite rare. The dark color of obsidian is largely due to the presence of iron and magnesium. Pure black obsidian is quite rare because, more often than not, the rocks will include some inclusions which will give it a brownish, yellowish or reddish coloring.

Is obsidian a precious stone?

Obsidian is a popular gemstone. It is often cut into beads and cabochons or used to manufacture tumbled stones. Obsidian is sometimes faceted and polished into highly reflective beads. Some transparent specimens are faceted to produce interesting gems.

Is there fake obsidian?

Obsidian. This can be a particularly insipid fake; true Obsidian is volcanic glass, which is obviously quite similar to man-made glass, both in appearance and composition. Some pieces are easy to identify as fakes – primarily due to their clarity. Fake Black Obsidian is very hard to identify, unfortunately.

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Is there fake black obsidian?

Is Blue obsidian rare?

Blue Obsidian is a silica-rich volcanic rock with an appearance like glass. Blue Obsidian in its natural form is rare which is why many stones on the market are man-made.

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.

What is the difference between Obsidian and coal?

As nouns the difference between obsidian and coal. is that obsidian is (mineral) a type of black glass produced by volcanoes while coal is (uncountable) a black rock formed from prehistoric plant remains, composed largely of carbon and burned as a fuel.

How much are obsidian worth?

There’s no set formula for determining the price/value, and over the years I have seen large (baseball-sized) translucent pieces of black obsidian sell for as little as $2 and as much as $40 (or much more) depending upon the location of the sale (high-end gift shop or gem and mineral show in…

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Is obsidian a shiny black rock?

Obsidian is a lightweight, shiny black gemstone created when a volcanic flow is cooled very quickly, into what Geologists call volcanic glass. Black Obsidian is sometimes referred to as Apache Tear Obsidian when in tear drop form.

Does obsidian have minerals?

However obsidian does not actually have any minerals in it because there is no crystalline structures and there is no definite chemical composition. It is simply lava which solidified quickly enough to remain glassy instead of forming mineral crystals.