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Flint is a common name for a form of sedimentary rock called chert, formed from microscopic siliceous (essentially quartz) skeletons of radiolarians. As such the hardness of chert is 7, which is slighly harder than glass and considerably harder than steel. If it will scratch glass it is likely to be flint. Flint is often mistaken for limestone or marble, which is much softer and will not scratch glass.

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What is the hardest rock flint or sandstone?

Flint


What is Ohio's state rock?

Flint is the State stone/rock of Ohio.


What is flint?

Flint is a rock that you rub to make fire.


Where can I find flint rock for my project?

You can find flint rock at outdoor supply stores, rock and mineral shops, or online retailers that specialize in geological specimens. Additionally, you may be able to find flint rock in nature, such as in riverbeds or quarries.


How do you tell the difference between Obsidian rock and Coal Flint rock?

Obsidian is a natural volcanic glass that is typically black and glassy in appearance, whereas coal is a sedimentary rock that is typically black and dull in appearance. Flint is a hard, sedimentary rock that often has a dark grey or black color with a smooth or waxy texture, whereas coal is formed from plant matter and is combustible.


Hard quartz rock that sparks when struck against steel or iron?

Flint is a hard rock that produces a spark when struck against steel. Flint is a sedimentary rock that is formed from a crypto crystalline quartz.


Explain how flint rock can be used to start a fire?

what does flint rocks used for


Where did flint rock come from?

Flint rock is a type of sedimentary rock that forms from the silica-rich remains of marine organisms like sponges and algae. Over time, these remains accumulate, compress, and harden to form the flint rock we see today.


What does dan flint play?

Dan Flint is the drummer for British rock band, You Me At Six.


What type of rock is used to start fire?

Flint stone is used for making sparks to start a fire


Is flint intrusive or extrusive?

Flint is a chemical sedimentary rock formed from the precipitation of silica rich solutions in layers of marine sediments.


Is sandstone or flint harder?

sandstone is not harder than flint because sandstone breaks in to smaller pieces.