Arsenopyrite gallery

ARSENOPYRITE Mine Falls Park, Nashua, NH
4 mm arsenopyrite crystal in quartz-mica matrix

ARSENOPYRITE Mine Falls Park, Nashua, NH
Cluster of 1.5 mm arsenopyrite crystals in quartz-mica matrix.

ARSENOPYRITE Mine Falls Park, Nashua, NH
A 12 inch wide, 20 pound chunk from a large sheet-like vein of arsenopyrite that was exposed at Mine Falls Park during construction of the hydro-electric plant in 1984

ARSENOPYRITE Mine Falls Park, Nashua, NH
9 cm specimen with many diamond cross-section voids formally occupied by arsenopyrite crystals.

ARSENOPYRITE Mine Falls Park, Nashua, NH
7 cm specimen of intergrown steel-gray arsenopyrite crystals with minor mica-quartz.

ARSENOPYRITE Mine Falls Park, Nashua, NH
5 mm arsenopyrite crystal in quartz.

ARSENOPYRITE Westmoreland Crushed Stone Quarry, Westmoreland, NH
Pair of 4 mm arsenopyrite crystals in slate-schist.

ARSENOPYRITE Franconia, NH
6 mm bronze tarnished arsenopyrite crystal in gray quartz.

ARSENOPYRITE - cobaltoan Small prospect near summit South Uncanoonuc Mtn. Goffstown, NH
4.5 cm specimen with vein of silver-color arsenopyrite in stained granite.

ARSENOPYRITE Mine Falls Park, Nashua, NH
2 mm arsenopyrite crystal in quartz-mica matrix

ARSENOPYRITE Gallery Return to Arsenopyrite page. Click on image for larger view
Arsenopyrite is likely responsible for the high levels of arsenic found in the water wells of southern Hillsborough county.
ARSENOPYRITE Mine Falls Park, Nashua, NH 4 mm arsenopyrite crystal in quartz-mica matrix	Species: ARSENOPYRITE Locality: Mine Falls Park, Nashua, NH Specimen Size: 4 mm arsenopyrite crystal in quartz-mica matrix Field Collected: Tom Mortimer Catalog No.: U1040 Notes:
ARSENOPYRITE Mine Falls Park, Nashua, NH Cluster of 1.5 mm arsenopyrite crystals in quartz-mica matrix.	Species: ARSENOPYRITE Locality: Mine Falls Park, Nashua, NH Specimen Size: Cluster of 1.5 mm arsenopyrite crystals in quartz-mica matrix. Field Collected: Tom Mortimer Catalog No.: U1039 Notes:
ARSENOPYRITE Mine Falls Park, Nashua, NH A 12 inch wide, 20 pound chunk from a large sheet-like vein of arsenopyrite that was exposed at Mine Falls Park during construction of the hydro-electric plant in 1984	Species: ARSENOPYRITE Locality: Mine Falls Park, Nashua, NH Specimen Size: A 12 inch wide, 20 pound chunk from a large sheet-like vein of arsenopyrite that was exposed at Mine Falls Park during construction of the hydro-electric plant in 1984. Field Collected: Tom Mortimer Catalog No.: Notes: This chunk is about 80% arsenopyrite, mixed with some quartz and mica. Slickenside surfaces are present on both sides.
ARSENOPYRITE Mine Falls Park, Nashua, NH 9 cm specimen with many diamond cross-section voids formally occupied by arsenopyrite crystals.	Species: ARSENOPYRITE - (casts) Locality: Mine Falls Park, Nashua, NH Specimen Size: 9 cm specimen with many diamond cross-section voids formally occupied by arsenopyrite crystals. Field Collected: Tom Mortimer Catalog No.: 798 Notes: This specimen is a testimony of the disolution of arsenopyrite releasing arsenic into the groundwater.
ARSENOPYRITE Mine Falls Park, Nashua, NH 7 cm specimen of intergrown steel-gray arsenopyrite crystals with minor mica-quartz.	Species: ARSENOPYRITE Locality: Mine Falls Park, Nashua, NH Specimen Size: 7 cm specimen of intergrown steel-gray arsenopyrite crystals with minor mica-quartz. Field Collected: Tom Mortimer Catalog No.: Notes: A typical Mine Falls Park arsenopyrite vein rock chunk. After the blasting for the hydrostation out-fall channel, hundreds of pounds of this vein were laying on the channel floor.
ARSENOPYRITE Mine Falls Park, Nashua, NH 5 mm arsenopyrite crystal in quartz.	Species: ARSENOPYRITE Locality: Mine Falls Park, Nashua, NH Specimen Size: 5 mm arsenopyrite crystal in quartz. Field Collected: Tom Mortimer Catalog No.: 653 Notes:
ARSENOPYRITE Westmoreland Crushed Stone Quarry, Westmoreland, NH Pair of 4 mm arsenopyrite crystals in slate-schist.	Species: ARSENOPYRITE Locality: Westmoreland Crushed Stone Quarry, Westmoreland, NH Specimen Size: Pair of 4 mm arsenopyrite crystals in slate-schist. Field Collected: Tom Mortimer Catalog No.: 671 Notes:
ARSENOPYRITE Franconia, NH 6 mm bronze tarnished arsenopyrite crystal in gray quartz.	Species: ARSENOPYRITE Locality: Franconia, NH Specimen Size: 6 mm bronze tarnished arsenopyrite crystal in gray quartz. Field Collected: A purchased specimen Catalog No.: 1116 Notes:
ARSENOPYRITE - cobaltoan Small prospect near summit South Uncanoonuc Mtn. Goffstown, NH 4.5 cm specimen with vein of silver-color arsenopyrite in stained granite.	Species: ARSENOPYRITE - cobaltoan Locality: Small prospect near summit South Uncanoonuc Mtn. Goffstown, NH Specimen Size: 4.5 cm specimen with vein of silver-color arsenopyrite in stained granite. Field Collected: Tom Mortimer Catalog No.: 2020 Notes: Visually this could be either arsenopyrite or lollingite. EDS analysis confirmed arsenopyrite with a small amount of cobalt
ARSENOPYRITE Mine Falls Park, Nashua, NH 2 mm arsenopyrite crystal in quartz-mica matrix	Species: ARSENOPYRITE Locality: Mine Falls Park, Nashua, NH Specimen Size: 2 mm arsenopyrite crystal in quartz-mica matrix Field Collected: Tom Mortimer Catalog No.: u1334 Notes:
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