| Locality type: | Mine |
| Classification |
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| Species: | Thomsonite-Ca |
| Formula: | NaCa2[Al5Si5O20] · 6H2O |
| Confirmation |
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| Validity: | Believed Valid |
| Data |
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| Mineral Data: | Click here to view Thomsonite-Ca data |
| Locality Data: | Click here to view Copper Falls Mine, Copper Falls, Eagle Harbor, Keweenaw County, Michigan, USA |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 59234 |
| Long-form Identifier: | 1:3:59234:3 |
| GUID (UUID V4): | bfadad54-5cd2-424b-9ef9-df86f034920d |
| Nearest other occurrences of Thomsonite-Ca |
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| 2.2km (1.3 miles) | ⓘCentral Mine, Central, Houghton Township, Keweenaw County, Michigan, USA |
| 3.3km (2.1 miles) | ⓘLookout Point (Thomsonite Hill), Eagle Harbor, Keweenaw County, Michigan, USA |
| 7.1km (4.4 miles) | ⓘDelaware Mine (Delaware Conglomerate Mine), Delaware, Grant Township, Keweenaw County, Michigan, USA |
| 11.0km (6.8 miles) | ⓘCliff Mine, Allouez Township, Keweenaw County, Michigan, USA |
| 25.1km (15.6 miles) | ⓘClark Mine, Copper Harbor, Grant Township, Keweenaw County, Michigan, USA |
| References |
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| Reference Search (possible matching items) |
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 | | Journal (issue) | | MICHIGAN COPPER! The Mineralogical Record JANUARY-FEBRUARY 2023 ? VOLUME 54 ? NUMBER 1 ? $40 ... KRISTALLE Est.1971 Laguna Beach, California, USA • Tel: +1 949 494 5155 • Email: info@kristalle.com...gemgypsy@bellsouth.net JANUARY–FEBRUARY 2023 Articles Copper Country II Introduction..............................................3 by W. E. Wilson The Keweenaw County Fissure Mines....................................13 by C. J. Stefano The Cliff Mine, Keweenaw County, Michigan................................... |  | | Book (edition) | | Linopolis, Brazil, H Page 13: Gold, 35 mm.Eagle's est Mine, California, G Publi!>hed by Grdllit.u.o. Stefanikova43...more structural sites, e.g. jahnsite(~fa). jahn ite-(Ca.\1nMn). etc. Other examples are pump~U);te-(Fe:,...or numerous zeolites. e.g. gmelinite- a. gmelinite-Ca, etc. For the fonnerly used prefixes such as Greek...both enclosed in square brackets, e.g. fluorapatite Ca[Fl(PO 4)3] or euchroite 0.1 2[OHIAsO 4]•3H 2O. This...common are malleable (e.g gold). ductile (e.g. copper). sectile (e.g. chalcocite). elastic Optical co11sta11ts |  | | Book | | long (Marty, 2004 ). AFRICA widely in Litchfield County, where good crystals were taken from quartz veins...region (Brunet, I 977b ). NEW YORK Amity, Orange County. At many isolated collected sites between the towns...Litchfield County. Ilmenite masses and crystals from somewhere near Washington, Litchfield County, were described...Lake Road occurrence, Faraday Township, Hastings County. In fall 1994, Dan and Shelley Lambert extracted...1995: 582). Madawaska [Faraday] mine near Bow Lake, Hastings County. Some of the world's finest ilmenite |
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