| Locality type: | Quarry |
| Classification |
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| Species: | Actinolite |
| Formula: | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
| Formation: | Secondary |
| Comments: | Layers of bedded needles with coarse-grained chrome-tremolite in altered ultramafic rock. |
| Habit: | acicular |
| Colour: | dark green |
| Abundance at site: | Common |
| Confirmation |
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| Validity: | Confirmed |
| Confirmation Methods: | Visually Identified |
| Associated Minerals Based on Photo Data: |
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| Tremolite | β4 photos of Actinolite associated with Tremolite at this locality. |
| Diopside | β3 photos of Actinolite associated with Diopside at this locality. |
| Epidote | β1 photo of Actinolite associated with Epidote at this locality. |
| Data |
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| Mineral Data: | Click here to view Actinolite data |
| Locality Data: | Click here to view Pegmatite quarry and ultramafic rock, Harwinton, Litchfield County, Connecticut, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 1368933 |
| Long-form Identifier: | 1:3:1368933:9 |
| GUID (UUID V4): | 854f725e-6c04-40c8-bc11-db4ed331e264 |
| Nearest other occurrences of Actinolite |
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| 7.3km (4.5 miles) | βMountain Top Trucking quarry, Torrington (Wolcottville), Litchfield County, Connecticut, USA |
| 9.4km (5.9 miles) | βState Routes 8 and 222 interchange, Thomaston, Litchfield County, Connecticut, USA |
| 11.6km (7.2 miles) | βTerryville, Plymouth, Litchfield County, Connecticut, USA |
| 12.6km (7.8 miles) | βReynolds Bridge, Thomaston, Litchfield County, Connecticut, USA |
| 16.8km (10.4 miles) | βHurley Hill, Bristol, Hartford County, Connecticut, USA |
| 18.5km (11.5 miles) | βSerpentinite, Norfolk, Litchfield County, Connecticut, USA |
| 19.8km (12.3 miles) | βNative American soapstone quarry, Barkhamsted, Litchfield County, Connecticut, USA |
| 24.3km (15.1 miles) | βNonnewaug River Industrial Park, Woodbury, Litchfield County, Connecticut, USA |
| 24.9km (15.5 miles) | βMine Mountain graphite prospect, Cornwall, Litchfield County, Connecticut, USA |
| 33.4km (20.8 miles) | βPfizer Company Marble Quarry (New England Lime Co. quarry; NELCO quarry; Specialty Minerals Inc.; Minerals Technologies Inc.; Canaan Limestone Quarry; Connecticut Lime Company; Canaan Lime Company; Lewis Quarry), Canaan, North Canaan, Litchfield County, Connecticut, USA |
| References |
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| Reference Search (possible matching items) |
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 | | Report (issue) | | North Carolina and northeastern Tennessee showing location of the Grandfather Mountain area and major tectonic...King (1955) and Geologic Map of North Carolina (1958). Quadrangles: 1, Linville; 2, Table Rock; 3, Blowing...Blowing Rock; 4, Lenoir: Figure 2. Generalized preliminary geologic map of the Grandfather Mountain area...THE GRANDFATHER MOUNTAIN AREA, N.C. 1 Bruce Bryant and John C. Reed, Jr. U.S. Geological Survey Denver,...authorized by Director, U.S. Geological Survey. Retyped and formatted December 1999. In the Inner Piedmont southeast |  | | Report (issue) | | North Carolina and northeastern Tennessee showing location of the Grandfather Mountain area and major tectonic...King (1955) and Geologic Map of North Carolina (1958). Quadrangles: 1, Linville; 2, Table Rock; 3, Blowing...Blowing Rock; 4, Lenoir: Figure 2. Generalized preliminary geologic map of the Grandfather Mountain area...THE GRANDFATHER MOUNTAIN AREA, N.C. 1 Bruce Bryant and John C. Reed, Jr. U.S. Geological Survey Denver,...authorized by Director, U.S. Geological Survey. Retyped and formatted December 1999. In the Inner Piedmont southeast |  | | Report (volume) | | the Mount Zirkel Wilderness and Northern Park Range Vicinity, Jackson and Routt Counties, Colorado By...SURVEY, LOWELL L. PATTEN, U.S. BUREAU OF MINES, and JEFFREY J. DANIELS, U.S. GEOLOGICAL SURVEY STUDIES...potential of the area Includes Davis Peak Roadless Area and adjacent wilderness established by P. L. 96-560 ...the Mount Zirkel Wilderness and northern Park Range vicinity, Jackson and Routt Counties, Colorado. (Studies...I 19.3:1554 1. Mines and mineral resources-Colorado--Jackson County. 2. Mines and mineral resources-Colorado-Routt |
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Pegmatite quarry and ultramafic rock, Harwinton, Litchfield County, Connecticut, USA