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Oxford Serpentine Quarry (Collins prospect), Oxford, Llano Co., Texas, USA
List of minerals arranged by Dana 8th Edition classification
| Group 2 - SULFIDES | ||
|---|---|---|
| AmXp, with m:p = 1:1 | ||
| Nickeline ? | 2.8.11.1 | NiAs |
| AmBnXp, with (m+n):p = 3:4 | ||
| Linnaeite ? | 2.10.1.1 | Co2+Co3+2S4 |
| Siegenite ? | 2.10.1.6 | CoNi2S4 -NiCo2S4 |
| AmBnXp, with (m+n):p = 1:2 | ||
| Cobaltite ? | 2.12.3.1 | CoAsS |
| Group 7 - MULTIPLE OXIDES | ||
| AB2X4 | ||
| Chromite | 7.2.3.3 | Fe(Cr,Al,Fe)2O4 |
| Magnetite | 7.2.2.3 | Fe2+Fe3+2O4 |
| Group 9 - NORMAL HALIDES | ||
| AX2 | ||
| Nickelbischofite ? | 9.2.9.2 | NiCl2 · 6H2O |
| Group 16b - HYDRATED CARBONATES CONTAINING HYDROXYL OR HALOGEN | ||
| Zaratite ? | 16b.4.1.1 | Ni3(CO3)(OH)4 · 4H2O |
| Group 40 - HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES | ||
| A3(XO4)2·xH2O | ||
| Annabergite ? | 40.3.6.4 | Ni3(AsO4)2 · 8H2O |
| Erythrite ? | 40.3.6.3 | Co3(AsO4)2 · 8H2O |
| Group 66 - INOSILICATES Double-Width,Unbranched Chains,(W=2) | ||
| Amphiboles - Mg-Fe-Mn-Li subgroup | ||
| Anthophyllite | 66.1.2.1 | ☐{Mg2}{Mg5}(Si8O22)(OH)2 |
| Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings | ||
| Sheets of 6-membered rings with 2:1 layers | ||
| Talc | 71.2.1.3 | Mg3(Si4O10)(OH)2 |
| Group 75 - TECTOSILICATES Si Tetrahedral Frameworks | ||
| Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si | ||
| Quartz | 75.1.3.1 | SiO2 |
| Unclassified Minerals | ||
| 'Albrittonite' | - | CoCl2 · 6H2O |
| 'Chlorite Group' | - | |
| 'Serpentine Group' | - | D2[Si2O5](OH)4 + or - nH2O |
16 entries listed. 12 valid minerals.
References
Crook, W.W., III & Marcotty, L.-A. (1978) Albrittonite, a new cobalt chloride hydrate from Oxford, Llano County, Texas; American Mineralogist: 63: 410-412.
Peacor et al. (1982), New data on and discreditation of "texasite," "albrittonite," "cuproartiniter", "cuprohydromagnesite," and "yttromicrolite," with corrected data on nickelbischofite, rowlandite, and yttrocrasite; American Mineralogist: 67: 156-169.
Peacor et al. (1982), New data on and discreditation of "texasite," "albrittonite," "cuproartiniter", "cuprohydromagnesite," and "yttromicrolite," with corrected data on nickelbischofite, rowlandite, and yttrocrasite; American Mineralogist: 67: 156-169.
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