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Fonda, Mohawk Township, Montgomery Co., New York, USA Calcite with a "Herkimer Diamond" quartz crystal. The specimen is about 7.2 cm in length. Specimen and photo: Steve Stuart. The calcite fluoresces a magenta pink under MW UV light. Some of the calcite fluoresces more reddish in spots. |
| © SMS 2006 | Photo ID: 62219 View Count: 190 |
Marcasite : FeS2, Calcite : CaCO3 | |
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Diamond Acres (Hastings Farm), Fonda, Mohawk Township, Montgomery Co., New York, USA Elongated marcasite crystals in calcite. Field of view is 12 mm across. Linda Frahm specimen. P. Cristofono photo. |
| © 2008 Peter Cristofono | Photo ID: 147036 View Count: 139 |
Quartz : SiO2 | |
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Hickory Hill, Fonda, Mohawk Township, Montgomery Co., New York, USA A flat cousin to the herkimers, this Quartz crystal is gemmy through and through, with very sharp edges and interesting form. There is only a little conchoidal fracture along the bottom edge, which is undoubtedly the attachment point. Interesting and attractive crystal, better in person. 2.5 x 2 x .9 cm |
| © Rob Lavinsky | Photo ID: 49066 View Count: 220 |
Quartz : SiO2 | |
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Fonda, Mohawk Township, Montgomery Co., New York, USA Quartz. A cluster of "Herkimer diamonds". E. Rowley collection. The scale at the bottom of the image is an inch with a rule at one cm. This is one of the best specimens known and the picture does not do it justice. |
| Photo ID: 241815 View Count: 25 | |
Quartz (Var: Herkimer Diamond) : SiO2 | |
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Diamond Acres (Hastings Farm), Fonda, Mohawk Township, Montgomery Co., New York, USA Rare matrix specimen of Herkimer Diamond variety quartz crystals (they easily pop off matrix during collecting). Overall size of mineral specimen: 33x20x17 mm. Size of individual crystals: 2-10 mm. |
| © 2001 John H. Betts | Photo ID: 1506 View Count: 555 |
Quartz (Var: Herkimer Diamond) : SiO2 | |
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Diamond Acres (Hastings Farm), Fonda, Mohawk Township, Montgomery Co., New York, USA Exquisite small cluster of water-clear quartz crystals (variety Herkimer Diamond) on matrix. Complete and undamaged. Matrix specimens are rare because the crystals commonly break off matrix during collecting. Overall size of mineral specimen: 2x1.5x1 cm. Size of individual crystals: 1 cm. |
| © 2002 John H. Betts | Photo ID: 4148 View Count: 520 |
Quartz (Var: Herkimer Diamond) : SiO2 | |
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Diamond Acres (Hastings Farm), Fonda, Mohawk Township, Montgomery Co., New York, USA Rare matrix specimen of Herkimer Diamond variety quartz crystals (they easily pop off matrix during collecting). Overall size of mineral specimen: 25x22x18 mm. Size of individual crystals: 2-12 mm. |
| © 2001 John H. Betts | Photo ID: 1505 View Count: 452 |
Quartz (Var: Herkimer Diamond) : SiO2 | |
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Fonda, Mohawk Township, Montgomery Co., New York, USA 5.4 x 4.8 x 4.0 cm. Matrix Herkimer quartz "diamond" specimens are rare because the crystals commonly break off matrix during collecting, as the matrix is commonly very hard. The sculptural matrix on this fine specimen features sharp, glassy, cut gem-like quartz crystals - two aesthetically set on the top and one "diamond" attractively set on ... |
| © Rob Lavinsky | Photo ID: 255046 View Count: 13 |
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