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Where does obsidian come from?
Obsidian is molten silica (read sand) which has cooled rapidly after a volcanic eruption into brittle glass and is the reason why it chips easily into blades. Iron and magnesium give obsidian its dark color.
What is obsidian used for today?
In the past, obsidian was used to make knives, arrowheads, spear points, scrapers, and many other weapons and tools. Once these discoveries were made, obsidian quickly became the raw material of preference for producing almost any sharp object. The easy-to-recognize rock became one of the first targets of organized "mining."
Is obsidian a metamorphic rock?
Obsidian is an igneous rock.So the answer is YES.
Are obsidian rocks rare?
Obsidian rocks are not considered rare, as they can be found in many locations around the world where volcanic activity has occurred. However, large and high-quality pieces of obsidian suitable for use in tools or jewelry may be less common and prized by collectors.
What is a glassy rock?
Glassy rocks are rocks that have cooled and solidified quickly, without forming crystals. This rapid cooling prevents mineral crystals from growing, resulting in a smooth and glass-like texture. Obsidian and pumice are examples of glassy rocks.
Teotihuacan is famous for artifacts made from?
Volcanic rock.
Is obsidian man made?
Obsidian is an igneous rock. Rocks are not man-made. Man-made substances that are similar to rock include concrete and cement.
What crystals are made by volcanoes?
obsidian
Is obsidian rock or gemstone?
Obsidian is an extrusive igneous rock. Volcanic in origin, it is very common in recent lava flows. Obsidian is primarily made of glass. Obsidian is amorphous, lacking any crystal structure found in gemstones. For more details, try asking the question - "What is obsidian"
What was the Aztec sacrifcal knife made out of?
Obsidian stone
What is a Aztec War Club made of?
it is made of wood and volcanic glass obsidian
What is obsidian for?
Obsidian is a glasslike volcanic rock that ancient people made arrowheads and spear points from. Some of these are wonderful works of craftsmanship.
What is an obsidian seed for minecraft?
I made the question I meant pe
How does Obsidian react to an acid?
Obsidian does not react with acid. Igneous rocks in general rarely react with acid.
What are the use of obsidian?
The properties of obsidian made it a valuable commodity for stone age tool makers, as a blade could be fashioned with a sharpness finer than that of any steel, down to nearly molecular thinness. Professional obsidian knappers can make surgical obsidian knives which can leave a smaller scar than steel knives. Another use of obsidian is as a stone in jewelry. Obsidian is a glasslike volcanic rock that ancient people made arrowheads and spear points from. Some of these are wonderful works of craftsmanship. It has been used to craft tools, historically. Obsidian has also been used to make jewelry.
Is obsidian made of silica?
Not entirely, though it is rather rich in silica.
Is obsidian compound an element or mixture?
Obsidian is a naturally occurring volcanic glass composed primarily of silicon dioxide, which is a compound made up of the elements silicon and oxygen. Therefore, obsidian is not an element but a mixture of elements in compound form.
