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A "petoskey" stone was originally an fossiliferous (with a coral fossil), organic (sedimentary) limestone.
The original limestone has been glaciated and pieces of the fossiliferous limestone containing the corals have been plucked form their bedrock matrix and rounded into pebbles as they have been carried along by ice.
When the ice melted these pebbles have been dropped into whatever was below them.
This means a petroskey stone is a clast in a "new", modern clastic rock. However the stones themselves are not originally from a clastic rock, they are sedimentary in origin.
What else can I help you with?
Can you find the petoskey stone outside of Michigan?
Currently, Petoskey has not been found outside of Michigan.
Is a petoskey stone a sedimentary rock?
Yes, a Petoskey stone is a type of sedimentary rock. It is formed from the remains of ancient coral reefs found in freshwater deposits in Michigan, USA. The stone is composed of fossilized coral, which gives it its distinct pattern.
How does the Petoskey Stone help prove the theory of the continental drift?
When all the contents were together there was shallow water in Michigan so the Petoskey Stone was transferred to Michigan and that's how it supports the continental theory. hope this helps. ;-D
Is gneiss clastic organic or chemical?
None of the above. These terms describe sedimentary rocks. Granite is igneous.
Why are the Petoskey Stones so unique to the scientific world?
Petoskey stones are a fossilized Devonian coral called Hexagonaria percarinata. They are found on the shores of Lake Michigan around the Petoskey, Michigan area, and no where else on earth. Some corals from Indonesia are "passed off" as Petoskey stones, but they are not the same thing.
What is the name of the pattrons on a petoskey stone?
The pattern on a petoskey stone is a hexagon.
How did the city of petoskey get its name?
From the state stone...the Petoskey Stone. (I guess)
What is the petoskey and where was it found?
Petoskey Stone is a type of coral and is fond in Northern Peninsula of Michigan
Can you find the petoskey stone outside of Michigan?
Currently, Petoskey has not been found outside of Michigan.
What is michagins state rock?
The Petoskey stone.
Is sand-stone clastic?
is sandstone a clastic
What is the Petoskey Stone and where was it found?
The Petoskey Stone is a fossilized coral primarily found in the state of Michigan in the United States. It is the state stone of Michigan and is known for its distinctive hexagonal pattern resembling a honeycomb. The stones are typically found along the shores of Lake Michigan and Lake Huron.
Where can the petoskey stone be found?
The Petoskey Stone is not only a rock, but a fossil as well. These pebble-shaped stones were formed as a result of glaciation. It is the state stone of Michigan and, can be found in places like, Lake Michigan and beaches near it.
What is the state rock of Michigan?
because the gem-isle was cute to them and they chose that rock
How was a Petoskey stone formed?
A Petoskey stone is a type of fossilized coral that formed around 350 million years ago during the Devonian period when Michigan was covered by a warm, shallow sea. The distinctive hexagonal pattern on the Petoskey stone is the result of the coral's skeletal remains being compressed and cemented together over time. Erosion then exposed these fossils, allowing them to be found along the shores of Lake Michigan.
Is a petoskey stone a sedimentary rock?
Yes, a Petoskey stone is a type of sedimentary rock. It is formed from the remains of ancient coral reefs found in freshwater deposits in Michigan, USA. The stone is composed of fossilized coral, which gives it its distinct pattern.
Why is the Petoskey stone so expensive?
The Petoskey stone is considered expensive primarily due to its unique geological formation and limited availability. These fossilized coral stones, found primarily in the Petoskey, Michigan area, are sought after for their distinctive patterns and beauty, making them popular among collectors and jewelers. Additionally, the labor-intensive process of locating, extracting, and polishing these stones contributes to their higher market value. As demand continues to rise, prices for quality Petoskey stones have also increased.
