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Herkimer Diamond Mines
KOA Kampground
Named
Kampground of the Year
for the North American
Continent
The Herkimer Diamond, New York KOA Kampground was named Kampgrounds of America’s Kamground of the Year during a ceremony Wednesday, November 18 at KOA’s annual Convention in Houston, Texas read more

Herkimer Diamond Mines Featured On Travel Channel
Season 2 of The Travel Channel's Cash and Treasures program aired a special on The Herkimer Diamond Mine. read more


Dynamite assists the development
of the new 3rd mine

Herkimer Diamond Mines
Opens 3rd Mine

We've operated with two mines for 30 years. As a result of increased need, the operation will offer a third Mine for guests in 2009. read more


Herkimer Diamond Mines is the proud presenting sponsor of


All the fun of minor league baseball right here in our
beautiful valley.

Opening Weekend:
June 4th, 5th, & 6th

“Double Diamond Getaway”
free tickets available


Herkimer Diamond Mines Newsletter
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Herkimer Diamond Mines
4601 State Route 28
Herkimer, NY 13350
GPS Coordinates:
43.1270477646888 (Latitude)
-74.9758529663086 (Longitude)
315.717.0175 (weekdays)
or 315.891.7355
(weekends & evenings)
diamonds@ntcnet.com



Herkimer Diamond
KOA Kampground

4626 State Route 28
Herkimer, NY 13350
315.891.7355 or
1.800.562.0897 (toll free)
or email us

Wholesale Opportunities:
315.717.0175 (weekdays only)

Group & Educational Program Information:
315.717.0175 (weekdays only) 

 

Prospecting Admission Rates:           
* $10.00 per person for ages 13 and up
* $8.00 per person for ages 5 to 12
* Free for children 4 and under

Your Admission Includes:           
* All day prospecting admission ticket (remember to keep your wristband on)
* Instructional 7-minute video (please view before you exit the store for the mining area)
* All day museum entrance ($2.00 per person without prospecting admission ticket)
* Use of our hammer (one per person).  A hammer deposit
(holding of your driver’s license or a $15.00 cash deposit) applies until hammers are returned.
* Zip lock Collector’s bags for your finds

Sluicing Bags:  * $10.00 per bag of rough material – your choice of
Herkimer Diamond Dirt, Fossil rough, or Gemstone rough

The Herkimer Diamond Mines Gift Shop, Museum, and Prospecting Area are open from
April 15 to October 31 – every day of the week.

Gift Shop and Museum Hours: 9:00 am to 5:00 pm daily

Prospecting Area: 9:00 am to 5:00 pm daily

From July 1st through Labor Day Weekend, the Gift Shop and Museum are open from 9:00 am to 6:00 pm daily

Herkimer Diamond Cafe:
April & May: Weekends only 10:30am - 4:30pm
Memorial Day Weekend through Labor Day Weekend: Open Every Day 10:30am - 4:30pm
September & October: Weekends Only 10:30am - 4:30pm

1. What Should We Bring?
We suggest that you come prepared with safety eye wear, gloves and closed toe shoes.  You may also bring any additional equipment that you find necessary, such as chisels, screeners, small shovels, buckets, and other hammers (up to a 12 lb sledge).  Furthermore, it is always appropriate to dress for the weather and bring sunscreen if necessary.

2. What are Herkimer Diamonds?
Herkimer Diamonds are beautiful double-terminated quartz crystals found in Herkimer, New York.  Incredibly, these phenomenal gemstones are close to five hundred million years old.  The crystals are magnificent works of nature, found in the rock, having a diamond-like geometrical shape.  Thus, the name recognition of “Herkimer Diamonds”.

3. How are Herkimer Diamonds different from other diamonds?
Herkimer’s rival true diamonds.  A true diamond found in the rough is exactly that, a rough appearing glass-like stone.  The true diamond must be painstakingly cut by man to give it smooth faces and a geometrical shape.  On a hardness scale, a true diamond scores a ten.  Herkimer Diamonds falls at a seven on the scale, giving the real diamond a close race.  They are naturally faceted, each having eighteen facets and 2 points.

4. How were Herkimer Diamonds formed?
The bedrock in which the crystal are found began forming approximately half a billion years ago in a shallow Cambrian Sea that lapped against the southern shores of the ancestral Adirondack Mountains.  The sediments (calcium magnesium carbonate) which slowly accumulated beneath the sea’s salty waters were gradually compacted under the weight of thousands of feet of additional sediments, forming the rock strata Dolostone.  While still beneath the sea, water seeped through the pores of the rock often creating “vugs” by dissolving part of the rock.

5. What are the collection methods?
The collecting methods range from casually looking along the prospecting area, digging through the rubble energetically, using crowbars, sledgehammers and heavy chisels.  The most popular tools are a 2 to 3 lb crack hammer and a bull point chisel.  The most popular method of prospecting for loose Herkimer Diamonds is by breaking them out of a single rock.

6.  What is pocket mining?
Domed pockets mining in the table layer of the rock is usually very rich with diamonds.  Some pockets are known to contain thousands of diamonds.  Pockets or cups can be up to six feet in diameter and usually no less than one foot.  The dome-like tops of the pockets are often lined with small, white cubic shaped dolomite crystal.  Occasionally, the top will be beautiful black druse quartz.  Pockets containing diamond crystals are never the same either in size or in quality.  Most pockets, as a rule, will contain diamond crystals of various sizes.  Some pockets may contain large crystals ranging in size from tour to eight inches long and three to four inches wide.  Other pockets with medium sized crystals range in size from an inch and a half to three to four inches long and a half-inch to two inches wide.  Micro crystals are always found.  As the crystals move up in size they tend to become less clear or more translucent than transparent.

7. Are there special Herkimer Diamonds?
Some crystals contain anthraxolite or decayed plant life.  The anthraxolite resembles bits of black coal within the crystals.  A special discovery would be an enhydro crystal.  These special specimen are crystals that contain a water bubble within it.  An extremely lucky find is an enhydro which contains species of anthraxolite floating in the water bubble.  Twins, double, clusters, tabulars, smokies, skeletals, and phantom crystals are all valuable specimen found in pockets and are further described in the Lapidary Section.

8. What constitutes a perfect Herkimer Diamond?
The most perfect crystals are usually those less than ?” long, but occasionally much larger crystals are found.  Crystals commonly occur intertwined or clustered and often tiny, perfect crystals are attached to the backs of larger ones.  An avid business of trading has developed among the multitudes of collectors, many of whom possess literally thousands of specimens.  The most perfect crystals are often used as display pieces in unusually attractive necklaces, earrings, and bracelets.

9. Can you be of any age to prospect?
We welcome miners of all ages, but we request that children be accompanied by an adult in order to keep your experience enjoyable and safe.

10.  Can we keep everything we find?
YES !!

Station 1:  The Fluorescent Room

The Fluorescent Room is the first station on the learning tour.  Large world-class rock and mineral specimens are first viewed under normal incandescent light.  Then press a button and – surprise ! – the lights go off and fantastic, outrageous colors glow from the rocks.  These specimens, found in mines from around the world, exhibit the harmless but spectacular phenomenon known as “fluorescence”.  Ultraviolet light excites electrons in certain atoms, causing them to glow in bright colors.

Station 2:  New York State Display

The second learning station is the New York Display.  Superb mineral specimens from New York State localities show what treasures our state provides.  The numerical identification system helps the observer locate the specific location on the seven by seven foot map.  The map illustrates all the rock units, topographic lines, roads, and cities.

Station 3:  Systematic Collection

Our extensive Systematic Collection is the third stop on our tour.  James Dana, An American Professor of Mineralogy at Yale was the first to organize minerals according to their chemical class.  Beginning with examples of elements such as copper, silver, and gold, our collection displays examples of crystallized oxides, halides, carbonates, phosphates, vanadinates, borates, and silicates from around the world.

Station 4:  Quartz Collection

The fourth learning station is our Quartz Collection.  Rare crystallized examples or rock crystals, amethyst, citrine, smoky, rose, rutilated, and septered quartz.  Agates, jaspers, cherts, geodes and synthetic quartz crystals are also exhibited and the economically important property of prozoelectricity is explained.

Station 5:  Herkimer Diamond Stand Alone

A special effort has been put forward to recognize our world famous Herkimer Diamonds.  Nowhere else is there such a breathtaking display.  Five circular display cases highlight the history and materials found with Herkimer Diamonds.  The large center case exhibits hundreds of large jewelry grade crystals.  Try to find the rare enhydros, phantoms, and skeletal crystals nestled among the glittering gems (new extensive collection of faceted Diamonds !!)

Station 6:  Physical Properties of Matter

Learning Station 6 explains the physical properties of minerals.  Examples of crystal form, habit, conductivity, tenacity, fracture, cleavage, luster, streaks, harness, specific gravity, and magnetism.  Utilizing these basic characteristics enables even the novice to identify one mineral from another.

Station 7:  Randy’s Room and Fossils

Learning Station 7 is a special room – “Randy’s Room” along with numerous examples of New York State Fossils.  This display exhibits fossils of the oldest life form know on earth.  The various fossilization processes are illustrated through our unique collection to provide the observer a better appreciation for these beautifully detailed remains of ancient life.

Nicknames “Randy” by a team of paleontologists after being unearthed in Madagascar, the rare Tyrannosaurus-like Majungatholus skull is the centerpiece at the Herkimer Diamond Miens Museum exhibit on prehistoric geology, fossils, and life.

 “Randy” was a massive carnivore similar to the better-known T-rex,” said Renee Scialdo Shevat, the Diamond Mines’ president.  He ruled the top of the food chain an estimated 65 to 70 million years ago during the late Cretaceous period.”

Randy was discovered in Madagascar off the coast of Africa when a bulldozer was clearing jungle land.  It was a rare find:  Only three such dinosaur skulls have been found worldwide.

Randy’s scientific name comes from “Majunga”, a district of Madagascar, and “tholus”, meaning dome in Latin.  Randy had a small horn above his eyes.  Full grown, Randy was about 30 feet long.  The fossil skull is approximately 3 feet long and weights 350 pounds.  The teeth are only slightly smaller than railroad spikes.

Majungatholus was a meat-eater, probably preferring the long-necked, plant-eating sauropods or other large dinosaurs.  Interestingly, Randy was found with his last meal – the thighbone of a sauropod – still captured in his teeth.  The rare Majungatholus skull was sought by several leading universities and museums.  Herkimer Diamond Mines is pleased to create a new home for Randy in Central New York.

Randy is on permanent exhibit at the Herkimer Diamond Mines Museum, which also includes a huge collection of gems, rocks, and minerals from around the world, as well as interactive displays.

Station 8:  Art Forms

Throughout history, mankind has been fascinated by the beauty of minerals and its art forms.  Striving to attain the most from these gems and precious metals man has make jewelry manufacturing a great art form.  Beautiful cabochons, faceted gems and inlay designs highlight this display as the pinnacle of human effort to embellish the environment.

Station 9:  Timeline

Learning station 9 is our answer to the difficult concept of geologic time.  Detailed information from the origins of our solar system, plate tectonics through the evolution of modern life is uniquely illustrated along our 22 foot long timeline.  Find out what’s older – the Herkimer Diamond or the Dinosaur.

Station 10:  Economic uses of Rocks and Minerals

Learning station 10 illustrates the uses of rocks and minerals, and the importance of rocks and minerals in our everyday lives.  Ores of metals, ceramics, glass, plastics, and building materials are displayed with their finished end product and economic uses.

Station 11:  The Diamond Cross

This diamond cross was found the morning of September 11, 2001, at the Herkimer Diamond Mines.  This is one of the most beautiful and unusual clusters ever found here.

Station 12:  Kingdom of Kimer

Come visit the Kingdom of Kimer.  A magical room for quiet reading.  Read The Legends of Herkimer Diamonds.  A book has been written for children to highlight the notoriety and unique features of the Herkimer Diamonds, which are right here in our backyard !  We also have all 6 plush characters available in gift baskets or sold separately.

Station 13:  Diamond Hall of Fame

Honorable, Industrious, Caring, Adventuresome.  It is fairly easy to describe the Herkimer Diamond Mines Hall of Fame first inductees.  Mr. and Mrs. Al and Jean Snyder of Oneida, NY have been selected as the 2005 recipients of this first year award.

Jean and Al were among the first diamond miners in 1955.  With the virgin rock ledge, rock hammers and two children, they aggressively managed to secure one of the first pockets of diamonds known to us.  Throughout the years, they initiated and managed regional lapidary and gemological organizations while creating and expanding their own business and raising a family.

On Sunday, May 29th, 2005, the new Hall of Fame was formally opened and Mr. and Mrs. Snyder were inducted by Assemblyman Marc Butler.  All and Jean and their family were our special guests.

The selecting process was international.  Based on ten different criteria, the ninety day process produced fifty semi-finalists, twelve finalists, selected by a committee of six advisors.  Chairperson, Dr. Renee’ Shevat said “It appears that we will have a number of deserving and likely candidates for succeeding years with the overwhelming interest internationally, but for this year, we are so very proud to acknowledge the efforts, drive, and modesty displayed by Al and Jean.

A new Hall of Famer will be selected in 2008

Our Crystal Chandelier Restaurant

Adjacent to the Mines (walking distance). Since 1982, the Crystal Chandelier Restaurant has provided friendly and courteous services to a variety of businesses, corporations, families and individuals throughout the Mohawk Valley.  “Quality is a necessity”.  Our policy is to provide you with a pleasant time, quality food, and efficient service. crystalchandelier.net

 

Our newly expanded

Herkimer Diamond Cafe

At the Mines (walking distance). Over the years, the Diamond Cafe has become a popular snack and lunch spot for our guests at the mines.  Children love the Frisbee platter for lunch.  Ever popular are our chicken fingers.  All food is cooked with hot air, not oils or grease.  Sit at our outdoor picnic area and enjoy the sounds of nature and children playing.

April & May - Weekends Only 10-10:30am - 4:30pm
Memorial Day Weekend - Labor Day Weekend: Open Every Day 10:30am - 4:30pm
September & October: Weekends Only - 10:30am - 4:30pm

Our Prospector’s Pavilion

At the KOA. only available to guests at the KOA. Our Prospector’s Pavilion is open on Friday and Saturday nights and Sunday mornings.  We offer pizza and fish fry on Friday (free delivery to sites).  Ice cream social on Saturday evenings and a Pancake breakfast on Sunday.

Our Waterfront Grille

Off-site Restaurant. A short 6 miles drive to the Erie Canal. All the food at the Waterfront Grille is made from scratch using only the finest quality ingredients.  The menu includes seasonal offerings from the Mohawk Valley, highlighting the area’s rich agricultural tradition.  The menu also incorporates locally produced food products and features regional beers and wines.


  1. Mining for Diamonds
  2. Kamping at our KOA Award winning Kampground
  3. Fossiling and Gemstone sluicing
  4. Visiting our Gem, jewelry and rock shop – 5000 square feet!
  5. Dining at the Crystal Chandelier restaurant
  6. Spending time at our Geological museum with our T-REX, “Randy”
  7. Catching Trout and bass, tubing and kayaking
  8.  Enjoying our Weekend-themed Activities
  9. Participating in Boy and Girl Scout jamborees
  10. Learning at Children’s Summer Rock and Gem Camp – 17th year!
  11. Experiencing daily educational programs
  12. Receiving wholesale opportunities
  13. Shopping at 70 Manufacturing outlets at our 2nd store Gems Along the Mohawk
  14. Relaxing on the Erie Canal Cruises through a Lock on  the Lil’ Diamond II
  15. Dining at the Waterfront Grille – our 2nd restaurant
  16. Gathering regional services and packages at our information center
  17. Obtaining group rates
  18. REALIZING THAT THIS IS WHERE DIAMONDS BECOME EVERYBODY’S BEST FRIEND

 

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