Question: How Can You Tell If You Have Petoskey Stones?

Why are Petoskey stones only found in Michigan?

Pleistocene glaciers (about two million years ago) plucked Petoskey stones from the bedrock and spread them over Michigan and surrounding areas.

This is why Petoskey stones can be found in gravel pits and along beaches far from the Petoskey area..

Can you tumble Petoskey stones?

Petoskey Stones are relatively soft, with a Mohs hardness of 3 to 3-1/2, so tumble polishing them safely can be a little tricky, and is recommended for experienced lapidarists. … If you use 600 silicon carbide grit, follow with 600 aluminum oxide as a pre-polish, jumping to the final polishing stage.

How much is a Petoskey stone?

Petoskey Stone Price Comparison ChartDescriptionQuantityPriceUnpolished Stone Slabs11$33.00Hand-Polished High Gloss1$55.00Unpolished with Clear Markings3$9.00Small Unpolished Smooth20$24.004 more rows

Where is the best place to find a Petoskey stone?

Lake Michigan beachThe Petoskey Stone was designated Michigan’s state stone in 1965. Today, the most popular place for hunting them is a Lake Michigan beach.

Are Yooperlites rare?

Yooperlite is a unique formation of a fairly common element, fluorescing sodalite. What is uncommon is its presentation to the world at this time. There is always the hope of new discoveries.

Are there Petoskey stones in Lake Superior?

From patiently searching for a Lake Superior agate, to finding a beach on Lake Michigan that is full of Petoskey stones, cool and exciting rocks can be found in every one of the Great Lakes.

Can you still find Petoskey stones?

The Petoskey stone, Michigan’s state stone – and its lesser-known cousin, the Charlevoix stone – are unique to the Great Lakes and can be found along the shores of Michigan’s lower peninsula.

How hard is it to find a Petoskey stone?

As stated before, when dry, Petoskey stones can be almost impossible to find as they look like limestone. Try looking for dry rocks that are on the beach and off the shore that may have been overlooked by other hunters. Petoskey stones have a sister stone – the Charlevoix stone. It is important to know the difference.

Are Petoskey stones worth money?

Unpolished, quality Petoskey stones are available at an average of around $4 per pound. This price is for about 2-5 stones per pound. Some online sites charge up to $10 for a pound of raw, unpolished, small stones–up to seven stones to a pound.

Are Petoskey stones rare?

I find Petoskey stones throughout our home area, but I realize just how uncommon these fossils are throughout the world. Our Petoskey earrings, bracelets, and necklaces are most popular with people who have visited or lived in Michigan, searched the beaches and remember those times fondly.

What is the biggest Petoskey stone ever found?

from Lake Michigan, the state has confiscated the rock. Michigan Department of Natural Resources officers went to O’Brien’s home in Copemish on Wednesday, Dec. 9, to collect the 93-pound rock he found in mid-September.

What does vinegar do to Petoskey stones?

The acidity of the vinegar will help dissolve excess particles, revealing the tiny crevices of the fossil.