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Petoskey Gallery
Welcome! The Petoskey Stones listed below are representative of the types of stones we offer.

Why do they shine?

All of our stones are buffed on a lapidary wheel to a high polish. We don't lacquer or polyurethane them.

Pricing of Petoskey Stones depends on the following considerations:
  • quality of preservation of the corallites
  • size of stone
  • the stone's ability to take a high polish
  • esthetic appeal
  • unique characteristics (does it incorporate other fossils, are the corallites extra large, extra small, or especially regular, is the color unusual, etc.)
We're too far to visit?
If you can't come in to the shop and would like us to choose stones for you, we're happy to do so. We may have a 3" stone polished on all sides for $15 or a 2" stone polished on one side for the same price, so we'll need to know:
  • your chosen price range,
  • whether size or quality of the stone is most important to you, and
  • if you want all sides polished, one side polished, or merely a portion of the stone polished.
Buy what you see
Enerdyne's Petoskey Stone Gallery contains stones in the $25-and-up range that are in stock and available for purchase. We try very hard to keep this section current for your convenience. The Gallery doesn't necessarily show everything $25-and-up that we currently have in stock, and we can also try to meet your needs/wants by specifying them to our suppliers. If you need more information or wish to order, please contact us by phone (231-271-6033) or E-mail.

Fact: The fuel efficiency of Voyager 2 (in mpg) is quite impressive. Even though most of the launch vehicle's 700 ton weight was due to rocket fuel, Voyager 2's great travel distance of 7.1 billion km (4.4 billion mi) from launch to Neptune resulted in a fuel economy of about 13,000 km per liter (30,000 mi per gallon). As Voyager 2 streaks by Neptune and coasts out of the solar system, this economy will get better and better!

As of March, 2002, Voyager II is up to 53,182 miles per gallon as it approaches a distance of 84 AU's (1 Astronomical Unit = ave. distance from Earth to Sun ~ 93,000,000 miles).

The average distance of Pluto from the Sun is 39.5 AU's and Proxima Centauri (the closest known star beyond the Solar System) is at a distance of over 900,000 AU's.

If you were to travel at a speed fast enough to take you around the Earth in one second, the trip to Proxima Centauri would take you one billion seconds--about 31 years, 251 days.

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