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Flint is unique to chalk, and chalk is entirely composed of the remains of tiny sea creatures called coccolithophores and diatoms. Their various shells and skeletons were composed of mainly calcium carbonate, with some species utilising silica.
After the chalk was deposited, decompositional bacteria began to feed on organic matter and released sulphur-rich compounds. These compounds mixed with water and formed a weak acid which began to locally dissolve the calcium carbonate proto-chalk. The resulting void filled with a silica rich solution, which over time hardened along with the strata, forming the flint nodules within chalk bedding we see today.
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What kind of rock is flint?
Flint is often referred to as a "Chemical Sedimentary" rock. Commonly formed when solid materials are dissolved by other means (water) and then redeposited in layers. This explains to a degree why flint has such a fine texture; it's comprised essentially of stuff that's small enough to be floating about in a glass of tap water. -S.M.
How do you tell that a rock is flint?
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.
What is the luster of flint?
Flint has a waxy luster.
What is flint's cleavage?
Flint does not have cleavage. It has conchoidal fracture.
What is a geode with flint in it?
A geode with a flint in it is called a "nodule".
Is flint intrusive or extrusive?
Flint is a chemical sedimentary rock formed from the precipitation of silica rich solutions in layers of marine sediments.
What is the name for a very small mesolithic flint which formed part of a composite tool?
These tiny flint tools are known as microliths.
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.
Flint chert and jasper are microcrystalline forms of what?
Flint, chert and jasper are all forms of the mineral quartz, which are generally formed in sedimentary rock.
What is the streak of a flint?
Flint is one of many forms of quartz, and its streak will be determined by impurities (non quartz) present. Quartz itself will have a white streak. Flint is a composite formed from quartz, and is not a specific mineral.
What kind of rock is flint?
Flint is often referred to as a "Chemical Sedimentary" rock. Commonly formed when solid materials are dissolved by other means (water) and then redeposited in layers. This explains to a degree why flint has such a fine texture; it's comprised essentially of stuff that's small enough to be floating about in a glass of tap water. -S.M.
How do you tell that a rock is flint?
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.
How did 'You Me at Six' become a group?
That's entirely not true. They were never on X Factor. They were formed in 2004. Dan Flint joined in July 2007.
What is a flint made of?
flint
What is a flint knife made of?
flint
Where is the North Flint Library in Flint located?
The address of the North Flint Library is: 5005 Cloverlawn Drive, Flint, 48504 2067
What can you do with flint on Minecraft?
flint and steel use it to detonate tnt ^.^
