Pictures of Herkimer Diamonds and their Association with Other Minerals
The General Minerization Sequence for the Herkimer Diamond Mining District*
Click on any mineral nameto see photos and more information
Rust - and related iron oxides
The depositional placement of the second dolomite and third dolomites appear to be happening throughout most of the Herkimer diamond making history, but more data is needed because it is difficult to find overlapping relationships with dolomite.
*The mineral depositional sequence is determined by carefully examining many specimens, across the entire district, to discover what minerals deposit on top of one another. For example, calcite is found to grow over the top of almost everything on this list. Each mineral event in the above sequence varies in intensity across a deposit, and across the mining district and thus lends a unique quality to each individual location within the district.
Rare occurrences of strontianite, celestite and chrysocola.
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Dr C will presentHerkimer Diamond Discoveriesat the 2017 Herkimer Diamond Festival