Herkimer Diamond
Key Crystal


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Water clear crystal with gumball shape.

Natural Herkimer Diamond Crystal
Additional photos below


AA Grade Herkimer Crystal

Length: 10.5 mm
Width: 10.25 mm
Depth: 6.5 mm 
Weight: 3.59 ct. 

A beautiful Herkimer Diamond crystal with geometric key marks. One of the keys is found at one of the termination tips and can be seen in some of the photos.  The other is quite shallow, but also very geometric.
This natural crystal has the popular round gumball shape!
Clarity is spectacular as the photos show. Herkimer's formed in vug's, or pockets beneath a shallow sea bed. While no one knows for sure what gives Herkimer Diamonds their fantastic clarity and brilliance, most all miners have their theories. There is a slightly different ratio of carbon to silicon in a Herkimer, as compared to normal crystal quartz. Black hydrocarbon, some call anthraxolite is a carbon mineral found both inside the diamonds and the surrounding ground. It's possible this high concentration of hydrocarbon could have filtered the water surrounding the crystal's growth, much like charcoal is used for filtering. Herkimer quartz crystals are an aqueous crystal, they were formed underwater.
This Herkimer Diamond key crystal has a bright shine and rich hue.

Price: US$ 100.00
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Herkimer Diamond Key Crystal Photos
Herkimer quartz crystal.

Photo shows excellent clarity

Double terminations and beautiful shine

Herkimer Diamond Key Crystal


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