Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsThe Rock H. Currier Digital LibraryGeologic Time
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsClubs & OrganizationsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral QuizTime Machine
Photo SearchPhoto GalleriesSearch by ColorNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography
Stellerite from
Goodwin Dam (Hogback Dam), Hartland, Hartford County, Connecticut, USA
| Locality type: | Dam | |
| Classification | ||
|---|---|---|
| Species: | Stellerite | |
| Formula: | Ca4(Si28Al8)O72 · 28H2O | |
| Formation: | Secondary | |
| Comments: | Crystals to 1 cm coating brecciated gneiss. A samplehttps://www.mindat.org/photo-709453.html analyzed by SEM-EDS determined to be most likely stellerite because of total lack of Na and K. | |
| Habit: | tabular prisms | |
| Colour: | orange | |
| Confirmation | ||
| Validity: | Unconfirmed/Questioned | |
| Data | ||
| Mineral Data: | Click here to view Stellerite data | |
| Locality Data: | Click here to view Goodwin Dam (Hogback Dam), Hartland, Hartford County, Connecticut, USA | |
| Data Identifiers | ||
| Mindat Occurrence Record ID: | 1286787 | |
| Long-form Identifier: | 1:3:1286787:9 | |
| GUID (UUID V4): | 0 | |
| Nearest other occurrences of Stellerite | ||
| 32.7km (20.3 miles) | ⓘThomaston Dam railroad cut, Thomaston Dam, Thomaston, Litchfield County, Connecticut, USA | |
| 43.4km (26.9 miles) | ⓘState Route 8 interchange 34 (formerly 37), Watertown, Litchfield County, Connecticut, USA | |
| 51.8km (32.2 miles) | ⓘO & G Woodbury Traprock Quarry (Orenaug Quarry; O & G No. 1 Quarry), Orenaug Hills, Woodbury, Litchfield County, Connecticut, USA | |
| References | ||
Mindat.org is an outreach project of theHudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2025, except where stated. Most political location boundaries are© OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 byJolyon Ralph.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844.doi:10.2138/am-2024-9486.
Privacy Policy -Terms & Conditions -Contact Us / DMCA issues -Report a bug/vulnerabilityCurrent server date and time: November 29, 2025 01:30:12
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2025, except where stated. Most political location boundaries are© OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 byJolyon Ralph.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844.doi:10.2138/am-2024-9486.
Privacy Policy -Terms & Conditions -Contact Us / DMCA issues -Report a bug/vulnerabilityCurrent server date and time: November 29, 2025 01:30:12