Siderite gallery

SIDERITE Gallery Return to Siderite page. Click on image for larger view
Siderite is a relatively common New Hampshire mineral. Siderite may be found in sulfide ore veins, phosphate pegmatites, and miarolitic cavities.
Locality: Folsom Brook Locale, Ossipee, NH	Locality: Folsom Brook Locale, Ossipee, NH Specimen Size: 5.5 x 3.5 cm specimen of oxidized rhombic siderite crystals. White coating is residual kaolinite. Field Collected: Tom Mortimer Catalog No.: 401 Notes:
Locality: Folsom Brook Locale, Ossipee, NH	Locality: Folsom Brook Locale, Ossipee, NH Specimen Size: 2.4 cm specimen of rhombic siderite crystals. Field Collected: Tom Mortimer Catalog No.: 667 Notes:
Locality: Mascot Mine, Gorham, NH	Locality: Mascot Mine, Gorham, NH Specimen Size: 13 cm specimen of siderite with seam of scallop habitat siderite crystals to 1.8 cm. Field Collected: Tom Mortimer Catalog No.: Notes: A somewhat ugly specimen that illustrates one of the siderite crystal habitats to be found at the Mascot Mine.
Locality: Mascot Mine, Gorham, NH	Locality: Mascot Mine, Gorham, NH Specimen Size: Zoom view of previous specimen: scallop habitat siderite crystals to 1.8 cm. Field Collected: Tom Mortimer Catalog No.: Notes:
Locality: Mascot Mine, Gorham, NH	Locality: Mascot Mine, Gorham, NH Specimen Size: 7 cm specimen. Vug in quartz filled with rhombic siderite and quartz crystals. Field Collected: Tom Mortimer Catalog No.: 1097 Notes:
Locality: Mascot Mine, Gorham, NH	Locality: Mascot Mine, Gorham, NH Specimen Size: Zoom view of vug in specimen 1097: rhombic siderite crystals to 3 mm. Field Collected: Tom Mortimer Catalog No.: 1097 Notes:
Locality: Shelburne Lead Mine, Shelburne, NH	Locality: Shelburne Lead Mine, Shelburne, NH Specimen Size: Rhombic siderite crystals to 7 mm on 6 cm specimen Field Collected: Tom Mortimer Catalog No.: 1159 Notes: Tan siderite crystals have secondary, white carbonate, over-growth.
Locality: Mine Falls Park, Nashua, NH	Locality: Mine Falls Park, Nashua, NH Specimen Size: Broken 3.5 cm tan rhombic siderite crystal cross-section, with limonite rind, embedded in sphalerite. Field Collected: Tom Mortimer Catalog No.: Notes: Specimen backside is mostly galena.
Locality: Stoddard Mine, Westmoreland, NH	Locality: Stoddard Mine, Westmoreland, NH Specimen Size: 8 cm specimen. Siderite crystals in quartz crystal vug. Field Collected: Tom Mortimer Catalog No.: 1359 Notes: Siderite altering to limonite?
Locality: Stoddard Mine, Westmoreland, NH	Locality: Stoddard Mine, Westmoreland, NH Specimen Size: Zoom view of siderite crystal in specimen 1359, above. 8 mm siderite crystal Field Collected: Tom Mortimer Catalog No.: 1359 zoom view Notes: Siderite altering to limonite?
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