|
|
Oak Hill Quarry, Oak Hill, Westford, Middlesex Co., Massachusetts, USA
List of minerals arranged by Dana 8th Edition classification
| Group 4 - SIMPLE OXIDES | ||
|---|---|---|
| AX2 | ||
| Rutile | 4.4.1.1 | TiO2 |
| Group 58 - SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups | ||
| Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [6] and higher coordination; single and double groups (n = 1, 2) | ||
| Epidote | 58.2.1a.7 | {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH) |
| Group 61 - CYCLOSILICATES Six-Membered Rings | ||
| Six-Membered Rings with borate groups | ||
| Schorl | 61.3.1.10 | Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH) |
| Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings | ||
| Sheets of 6-membered rings with 2:1 layers | ||
| Muscovite | 71.2.2a.1 | KAl2(AlSi3O10)(OH)2 |
| Group 75 - TECTOSILICATES Si Tetrahedral Frameworks | ||
| Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si | ||
| Quartz | 75.1.3.1 | SiO2 |
| Unclassified Minerals | ||
| Albite var: Oligoclase-Albite | - | (Na,Ca)[Al(Si,Al)Si2O8] |
| 'Apatite' | - | |
| Biotite | - | |
| 'K Feldspar' | - | |
9 entries listed. 6 valid minerals.
This page is currently not sponsored. To sponsor this page click here.
Mindat Lightbox
Mineral and Locality SearchOptions| Fade toolbar when not in focus | Fix toolbar to bottom of page | ||
|---|---|---|---|
| Hide Social Media Links | |||
| Slideshow frame delay | seconds | ||
