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Herkimer diamond

From Wikipedia, the free encyclopedia

Herkimer diamond is a misleading name for double-terminated quartz crystals first discovered in exposed outcrops of dolostone at Little Falls in Herkimer County, New York and the Mohawk River Valley. They are sometimes referred to as Little Falls Diamond and Middleville Diamond. They became largely recognized after workmen discovered them in large quantities while cutting into the Mohawk River Valley dolostone in the late 1700s. Geologists discovered exposed dolostone in Herkimer County and began mining there. The popularity of mining for double-terminated quartz in the Herkimer County outcroppings is what led to the name, Herkimer diamonds. Currently, Herkimer diamonds can be found in large quantity in at least Herkimer, Fulton, and Montgomery counties.

These quartz crystals, which formed extremely slowly in small pockets or vugs, have 18 facets (6 sides) and two terminations. They can be found clear, cloudy, or even containing a variety of rare impurities. Impurities (rare and general) can include clusters, scepters, enhydro, phantom, and bridge crystals. An enhydro contains a water pocket within the crystal, and a phantom is a crystal which contains an image of itself within.

 

Current Herkimer diamonds

These are all very nice specimens for a mineral collector or very unique gift!

All photos are of the actual stones & enlarged to show detials

"Excellent service for a valuable purchase. Thank you very much."

 

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A  Herkimer Diamond quartz crystal on matrix from Crystal Grove Mine,St. Johnsville

$21

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A group of four Herkimer Diamond quartz crystal on matrix from Crystal Grove Mine,St. Johnsville

$26

 

 

hello! I received my Herkimer on the matrix - I am very happy and would gladly give you feedback on ebay but I purchased it at:
not on ebay, so please advise how to give you feedback
again, I am very pleased - thank you!
 
K:)
 

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42mm Herkimer diamond w/ Phantom & Unique Formation!

$26

Herkimer diamond. The crystal measures 42x21x24mm. It weighs 19.8 grams. There are a few minor fractures, a couple of small bits of matrix attached, and a chip. Other than this the crystal is great condition. It has mixed clarity, sharp terminations, anthraxolite inclusions, a phantom cloud forming within, a few small rainbows, and a unique formation with extra steps and faces. Over all a great Herkimer diamond specimen.

None of my stones are treated with or cleaned with any sort of chemical or acid. They have been cleaned with a toothbrush and water only! Guaranteed!!

52mm Herkimer diamond Cluster Insane Formation/RAINBOWS

$57.

Herkimer diamond cluster. The piece consists of five crystals in total. The specimen measures 52x42x18mm. It weighs 41.8 grams. There are some fractures, and the bottom of the piece is rough from where it separated from matrix. Other than this the cluster is in great condition. It has mixed clarity, beautiful golden hues from external iron stains, some anthraxolite, stunning rainbows at almost every angle, and a crazy formation (kind of tabular). Over all an excellent rainbow filled Herkimer diamond golden healer cluster.

None of my stones are treated with or cleaned with any sort of chemical or acid. They have been cleaned with a toothbrush and water only! Guaranteed!!

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NEAR Flawless Herkimer Diamond - RADIANT GLOW

$36http://seo711.googlepages.com/j0305725.jpg

Herkimer Diamond Herkimer Diamond

This NEAR FLAWLESS Herkimer Diamond GEM, was hand dug in Middleville, NY. 

This GEM has a beautiful RADIANT ILLUSTRIOUS GLOW

Make a HIGH GRADE addition to any collection or pendant.

HERKIMER DIAMONDS DO NOT GET ANY BETTER THAN THIS, A RAINBOW RADIANT LUSTER THAT IS UNSURPASSABLE, THIS IS WHAT EVERYONE IS LOKING FOR WHEN THEY GO DIG!

This GEM measures  8 X 6 X 4 and weighs 1Carat 

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31.3 Grams - Herkimer Diamond "STEP DOWN FOARMATION"

$44

Herkimer Diamond
Herkimer Diamond

This  UNIQUE Herkimer Diamond was hand dug in Middleville, NY

LOTS OF RAINBOWS, INSIDE THIS UNIQUE HERK!

UNIQUE "STEP DOWN" FORMATION

 

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Herkimer Diamond GEM with PYRITE

$21

Herkimer Diamonds Herkimer Diamonds
Herkimer Diamonds Herkimer Diamonds

This UNIQUE Herkimer Diamond, was hand dug in St. Johnsville, NY 

This GEM features a unique FINGER SHAPE with a UNIQUE PYRITE PERTRUDING AND PENETRATING.

THIS GEM HAS OUTSTANDING GEM PYRITE, Pertruding this GEM. THERE ARE SEVERAL SPOTS WHERE THE PYRITE IS NATURALLY PERTRUDING, including the BOTTOM TERMINATION, and other surface FACES. (Visable in Photos)

 

View our Uncut diamonds

 

Herkimer diamonds

 

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