| Locality type: | Quarry |
| Classification |
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| Species: | 'Plagioclase' (not an IMA approved species) |
| Formula: | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Plagioclase data |
| Locality Data: | Click here to view Kirk No. 2 Quarry, Gilsum, Cheshire County, New Hampshire, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 653493 |
| Long-form Identifier: | 1:3:653493:6 |
| GUID (UUID V4): | f7332b97-f6f5-494d-a8b9-3ebf11ea790e |
| Nearest other occurrences of Plagioclase |
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| 1.3km (0.8 miles) | ⓘNichols Quarry, Gilsum, Cheshire County, New Hampshire, USA |
| 2.2km (1.4 miles) | ⓘFrench Mine, Alstead, Cheshire County, New Hampshire, USA |
| 2.2km (1.4 miles) | ⓘWhite Quarry, Gilsum, Cheshire County, New Hampshire, USA |
| 2.4km (1.5 miles) | ⓘBlister Mine, Alstead, Cheshire County, New Hampshire, USA |
| 2.5km (1.6 miles) | ⓘBurroughs beryl prospect, Alstead, Cheshire County, New Hampshire, USA |
| 2.7km (1.7 miles) | ⓘIsland Mine, Alstead, Cheshire County, New Hampshire, USA |
| 2.8km (1.7 miles) | ⓘKirk No. 1 Quarry, Gilsum, Cheshire County, New Hampshire, USA |
| 3.7km (2.3 miles) | ⓘBig Mine, Alstead, Cheshire County, New Hampshire, USA |
| 5.0km (3.1 miles) | ⓘBritton Quarry, Alstead, Cheshire County, New Hampshire, USA |
| 14.5km (9.0 miles) | ⓘOsgood Graphite Mine, Nelson, Cheshire County, New Hampshire, USA |
| References |
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| Reference Search (possible matching items) |
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 | | Report (issue) | | Pegmatite Investigations 1942-45 New England By EUGENE N. CAMERON and OTHERS GEOLOGICAL SURVEY PROFESSIONAL..._______ _ Geology of the pegmatite districts of New Hampshire_ Rock units ________________________________...quality __ AnalyHis of the wartime mica industry of New England ________________________________________...Androscoggin County ______________________ _ Berry feldspar quarry __________________ _ Cumberland County ___...LaChance mines _______________________ _ Oxford County ____________________________ _ Barrett beryl prospect |  | | Journal (article/letter/editorial) | | SOCIETY OF AMERICA VOL. 69. PP. 803-836. 19 FIGS.. 2 PLS. JULY 1968 MECHANISMS OF PEGMATITE EMPLACEMENT...country rock filled by pegmatite Nondisplacement: no movement aside of country rocks occurred Mobility:...a field study of certain granitic pegmatites of New England are also presented. The purpose of this study...ILLUSTRATIONS Figure Page 1. Principle of dilatant offset 810 2. Alternate interpretation of dilatant offset. 810...part of New England 823 12. Geologic map of pegmatite districts in west824 central New Hampshire 13. Geologic |  | | Field Trip Notes | | //' . GUIDEBOOK FOR FIELD IN ''fy,.'t:J TRIPS NEW ENGLAND NOVEMBER 10-12, 1952 Organized by the...Before visiting any of the sites described in the New England Intercollegiate Geological Conference guidebooks...Please respect any trip stops designated as "no hammers", "no collecting" or the like. Consider possible... CONTENTS Page Field Trip No. 1. Geology of the Appalachian Highlands of East-Central New York, Southern Vermont...Southern New Hampshire Field Trip No. 2, Outstanding pegmatites of Maine and New Hampshire 73 Geology |
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