| Locality type: | Mine |
| Classification |
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| Species: | Beryl var: Heliodor |
| Formula: | Be3Al2(Si6O18) |
| Colour: | yellow |
| Confirmation |
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| Validity: | Confirmed |
| Confirmation Methods: | Visually Identified |
| Data |
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| Mineral Data: | Click here to view Heliodor data |
| Locality Data: | Click here to view Schoonmaker Mine, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 685984 |
| Long-form Identifier: | 1:3:685984:8 |
| GUID (UUID V4): | 02666f91-490b-4547-aa32-ef8456c079d1 |
| Nearest other occurrences of Heliodor |
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| 0.1km (0.1 miles) | ⓘStrickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA |
| 2.9km (1.8 miles) | ⓘWalden Gem Quarry, Portland, Middlesex County, Connecticut, USA |
| 3.7km (2.3 miles) | ⓘCase Quarries, Portland, Middlesex County, Connecticut, USA |
| 5.2km (3.2 miles) | ⓘSimpson Quarry (Wiarda Quarry), South Glastonbury, Glastonbury, Hartford County, Connecticut, USA |
| 10.1km (6.3 miles) | ⓘBecker Quarry, East Hampton (Chatham), Middlesex County, Connecticut, USA |
| 10.3km (6.4 miles) | ⓘAnderson No. 1 Mica Mine (Swanson Mine; Swanson Lithia Mine; Old Lithia Mine; Chatham Lithia Mine), East Hampton (Chatham), Middlesex County, Connecticut, USA |
| 12.1km (7.5 miles) | ⓘSlocum prospect, East Hampton (Chatham), Middlesex County, Connecticut, USA |
| 16.4km (10.2 miles) | ⓘCivilian Conservation Corps prospect (CCC prospect; Cook columbite prospect), Haddam, Middlesex County, Connecticut, USA |
| 17.0km (10.6 miles) | ⓘHewitt Gem Quarry (Herb's Gem Quarry; Sawmill Quarry), Haddam, Middlesex County, Connecticut, USA |
| 70.4km (43.7 miles) | ⓘNew England Mining Company Quarry (Roebling Mine; Hewitt's Mine), Upper Merryall, New Milford, Litchfield County, Connecticut, USA |
| References |
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| Reference Search (possible matching items) |
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 | | Book (edition) | | THE MINERAL LOCALITIES OF CONNECTICUT AND SOUTHEASTERN NEW YORK * «-• r ** K* ysf^ :' •'’S >- n...250 SPECIES iBooks by Ronald Everett Januzzi CONNECTICUT MINERALS ON PARADE NEW YORK STATE MINERALS ON...THE MINERALOGICAL PRESS 83 Elm Street Danbury. Connecticut IIOIPW MINERALS ON PARAt>E F.tMSTltIP* THREE...to enrich our knowledge of the mineralogy of Connecticut: James Dwight Dana Samuel L. Penfield Edward...Minerals from the Principal Localities in Western Connecticut and Southeastern New York State............. |  | | Book (edition) | | 1_� Cv1,_1'--A� __, SECOND EDITION 1955 HOLIDAY HILL PRESS 1485 FORCE DRIVE, MOUNTAINSIDE, N. �- Copyright...week collecting in the pegme.tite area ot Oxford county, !!Bine, Neil Wintr:lnghal'!l, a pa.st-president...been replaced in the locality seotion by the Scotty Mine, an active operation of considerable interest. The...characterized the evenings spent with members of the Oxford County Mineral & Gem Association. N. A. W. Mountainside... James L. Faulkner {Ridlonville) of the Oxford County Mineral & Gem Association, Mr. John E. Duffy and |  | | Report (issue) | | .B3 Graph showing dates associated with all the mine sites on the U.S. Environmental Protection Agency’s...production, U.S. apparent consumption, and U.S. mine production of antimony from 1900 to 2012............................F2 Graph showing world cobalt mine and refinery production and apparent consumption.....................F2 Graph showing world cobalt mine production from 1950 to 2011......................F4. Pie chart showing percentage of world cobalt mine production in 2011, by country................. |  | | Book (edition) | | photomicrographs from the W.S. MacKenzie collection The McGraw-Hill Companies for figures from Igneous Petrology; Microscopic...Fayalite, Gunflint Iron Formation, Minnesota-Ontario, USA (Floran, R.J. & Papike, J.J., 1978, J. Petrol., 19...21588). Knebelite, metasomatized limestone, Blue Bell Mine, British Columbia, Canada (Mossman, D.J. & Pawson...includes K2O 0.01, H2O 0.05. 5 Tephroite, Benallt Mine, Caernarvonshire, Wales, UK (Smith, W.C. et al....with allanite, fergusonite and thorogummite in pegmatite, Hayamadake, Fukishima Pref., Japan (Hasegawa |
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Schoonmaker Mine, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA