The B-Zone 4611 Silver-Rich Pod—An Unusual Ag-Ge-Sb-As-Ni Assemblage Within the Irish-Type Zn-Pb Silvermines Deposit, County Tipperary, Ireland
Abstract
:1. Introduction
2. Regional Geological Setting and Metallogenesis
3. Introduction to Silver Mineralization in the Silvermines Deposits
4. Previous Work
5. The B-Zone
6. The 4611 Pod
7. Mineralogy
8. Paragenesis
9. Discussion
10. Conclusions
Author Contributions
Funding
Data Availability Statement
Acknowledgments
Conflicts of Interest
Appendix A. Description of Minerals
Argyrodite | |||||||
Ag | Ge | S | Total | Ag/Ge | |||
SVF 1Z | 77.34 | 6.50 | 16.26 | 100.1 | 11.9 | ||
SVF 1Y | 82.62 | 5.25 | 13.16 | 101.3 | 15.7 | ||
SVF lX | 80.87 | 4.67 | 12.19 | 97.71 | 17.3 | ||
SVF 1U | 79.83 | 5.04 | 13.41 | 98.28 | 15.8 | ||
SVF 1V | 80.19 | 5.46 | 13.86 | 99.51 | 14.7 | ||
SVF 1U | 81.71 | 2.81 | 11.49 | 96.01 | 29.1 | ||
SVF 1V | 77.05 | 6.28 | 17.19 | 100.52 | 12.3 | ||
SVF 1T | 82.38 | 1.73 | 12.15 | 96.26 | 47.6 | ||
Ideal Composition | 76.51 | 6.44 | 17.05 | 100.00 | 11.9 | ||
Proustite–Pyrargyrite | |||||||
Ag | Sb | As | S | Total | As/(As+Sb) | ||
SVF 1D | 66.78 | 2.51 | 11.86 | 18.07 | 99.22 | 0.83 | |
SVF lE | 65.74 | 3.57 | 11.39 | 17.85 | 98.55 | 0.76 | |
SVF IF | 66.24 | 2.56 | 12.38 | 17.88 | 99.06 | 0.83 | |
SVF 1G | 66.39 | 2.38 | 12.01 | 18.06 | 98.84 | 0.83 | |
W6 CD | 62.66 | 17.34 | 3.19 | 17.05 | 100.24 | 0.16 | |
W6 CA | 61.41 | 18.11 | 2.31 | 16.65 | 98.48 | 0.11 | |
SVF 1ZC | 64.79 | 6.29 | 9.84 | 17.84 | 98.76 | 0.61 | |
SVF 1ZD | 65.06 | 4.87 | 10.64 | 17.97 | 98.54 | 0.69 | |
SVF Z1Z | 66.75 | 5.17 | 10.84 | 18.02 | 100.78 | 0.68 | |
SVF Z1Y | 65.92 | 5.45 | 9.62 | 18.22 | 99.21 | 0.64 | |
SVF Z1X | 67.06 | 4.89 | 10.31 | 18.19 | 100.45 | 0.68 | |
SVF Z1Y | 67.12 | 4.59 | 10.44 | 18.19 | 100.34 | 0.69 | |
SVF Z1T | 67.23 | 4.71 | 10.06 | 18.00 | 100.00 | 0.68 | |
SVF Z1S | 66.97 | 4.67 | 10.02 | 17.91 | 99.57 | 0.68 | |
Zak 11 | 61.10 | 11.00 | 7.80 | 18.30 | 98.20 | 0.41 | |
Zak 12 | 61.50 | 10.90 | 8.10 | 18.50 | 99.00 | 0.43 | |
Zak 13 | 61.40 | 11.20 | 8.20 | 18.60 | 99.40 | 0.42 | |
Ideal Composition | 65.42 | 0 | 15.14 | 19.44 | 100.00 |
Diaphorite | |||||||||
Cu | Ag | Pb | Sb | S | Total | ||||
SF 5D | 0.59 | 24.81 | 30.92 | 26.91 | 17.69 | 100.82 | |||
SF 5F | 0.58 | 24.62 | 31.58 | 26.60 | 17.69 | 101.07 | |||
W6CC | 0 | 25.03 | 29.43 | 26.76 | 18.33 | 99.55 | |||
W6CB | 0 | 24.86 | 29.63 | 26.18 | 18.31 | 98.98 | |||
Geocronite | |||||||||
Pb | Sb | As | S | Total | |||||
SVF 1H | 69.26 | 6.39 | 5.81 | 16.67 | 98.13 | ||||
SVF 1K | 68.31 | 6.48 | 5.71 | 17.63 | 98.13 | ||||
SVF 1L | 68.31 | 6.70 | 5.67 | 18.08 | 98.76 | ||||
Zak 8 | 69.40 | 7.70 | 5.50 | 17.20 | 99.80 | ||||
Zak 9 | 70.50 | 6.90 | 6.00 | 17.20 | 100.60 | ||||
Zak 10 | 70.20 | 6.70 | 5.90 | 17.30 | 100.10 | ||||
Boulangerite | |||||||||
Ag | Zn | Pb | Sb | As | S | Total | |||
SVF5 B1 | 0.33 | 0 | 58.30 | 24.75 | 0.20 | 17.08 | 100.33 | ||
SVF5 B2 | 0.93 | 0 | 58.03 | 24.15 | 0.22 | 16.67 | 99.07 | ||
SVF5 B3 | 1.27 | 0 | 58.10 | 23.90 | 0.28 | 16.45 | 98.73 | ||
SVF5 E1 | 0.42 | 0 | 58.34 | 24.51 | 0.24 | 17.33 | 100.42 | ||
SVF5 E2 | 0.25 | 0 | 58.54 | 24.54 | 0.00 | 17.17 | 100.25 | ||
SVF5 H | 0.63 | 0 | 57.86 | 25.15 | 0.20 | 17.42 | 100.63 | ||
SVF5 L | 2.98 | 0.89 | 55.79 | 25.10 | 0.00 | 16.58 | 98.36 | ||
SVF5 L | 2.91 | 0.70 | 55.23 | 24.38 | 0.00 | 17.14 | 97.45 | ||
W6A C | 0.89 | 0.00 | 56.58 | 24.12 | 0.93 | 17.48 | 99.11 | ||
W6A B | 0.47 | 0 | 57.13 | 24.94 | 0.68 | 17.72 | 100.47 | ||
W9B A | 0.96 | 0 | 56.07 | 24.62 | 0.37 | 17.98 | 99.04 | ||
SVF5 Z | 1.80 | 0 | 56.17 | 24.73 | 0.31 | 16.99 | 98.20 | ||
SVF5 Y | 1.02 | 0 | 56.34 | 24.75 | 0.27 | 17.62 | 98.98 | ||
SVF5 X | 1.45 | 0 | 56.17 | 24.64 | 0.29 | 17.45 | 98.55 | ||
Tetrahedrite | |||||||||
Cu | Ag | Zn | Fe | Sb | As | S | Total | ||
SVF IS | 18.68 | 26.5 | 4.36 | 2.55 | 23.70 | 2.42 | 21.37 | 99.58 | |
Zak 1 | 23.30 | 20.60 | 4.04 | 3.54 | 14.90 | 9.20 | 23.10 | 98.68 | |
Zak 2 | 22.90 | 22.00 | 5.57 | 3.02 | 14.60 | 8.60 | 23.30 | 99.99 | |
Zak 3 | 23.90 | 21.10 | 4.79 | 2.88 | 14.90 | 8.30 | 23.40 | 99.27 | |
Zak 4 | 22.10 | 23.90 | 5.05 | 3.01 | 14.70 | 8.30 | 22.70 | 99.76 | |
Zak 5 | 22.60 | 22.50 | 4.22 | 2.83 | 14.70 | 9.10 | 22.90 | 98.85 | |
Zak 6 | 37.50 | 2.90 | 5.00 | 2.43 | 22.40 | 4.90 | 24.40 | 99.53 | |
Zak 7 | 40.00 | 1.70 | 4.93 | 2.87 | 13.30 | 11.20 | 26.80 | 100.80 | |
Intergrowth Gersdorffite, Geocronite and Galena | |||||||||
Ag | Fe | Ni | Pb | As | Sb | S | Total | ||
SF 1ZL | 0.86 | 3.20 | 12.61 | 45.79 | 26.00 | 0.00 | 11.06 | 99.52 | |
SF 1ZM | 0.88 | 3.76 | 13.35 | 44.58 | 27.84 | 0.84 | 12.12 | 103.37 | |
SF 1ZN | 0.81 | 4.48 | 14.28 | 36.76 | 29.88 | 0.00 | 12.95 | 99.16 | |
SF 1Z P | 0.57 | 7.15 | 14.09 | 39.61 | 28.58 | 0.00 | 14.64 | 104.64 | |
Zak 22 | 0.00 | 1.35 | 3.00 | 60.40 | 11.60 | 6.30 | 16.90 | 99.55 | |
Zak 23 | 0.05 | 1.89 | 5.00 | 68.80 | 9.50 | 0.20 | 14.10 | 99.54 | |
Gersdorffite | |||||||||
Fe | Ni | Cd | As | S | Total | ||||
SVF 1ZA. | 16.60 | 18.99 | 0.42 | 38.77 | 24.21 | 98.99 | |||
SVF 1ZB | 15.09 | 21.06 | 0 | 41.56 | 22.67 | 100.38 | |||
SVF lZW | 14.32 | 22.03 | 0 | 45.35 | 19.92 | 101.62 | |||
SVF 1ZU | 14.07 | 22.29 | 0 | 45.63 | 19.20 | 101.19 | |||
Zak 14 | 14.30 | 19.50 | 0 | 43.50 | 20.20 | 97.50 | |||
Zak 15 | 8.60 | 25.90 | 0 | 45.60 | 19.50 | 99.60 |
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Andrew, C.J.; Ashton, J.H. The B-Zone 4611 Silver-Rich Pod—An Unusual Ag-Ge-Sb-As-Ni Assemblage Within the Irish-Type Zn-Pb Silvermines Deposit, County Tipperary, Ireland. Minerals 2025, 15, 540. https://doi.org/10.3390/min15050540
Andrew CJ, Ashton JH. The B-Zone 4611 Silver-Rich Pod—An Unusual Ag-Ge-Sb-As-Ni Assemblage Within the Irish-Type Zn-Pb Silvermines Deposit, County Tipperary, Ireland. Minerals. 2025; 15(5):540. https://doi.org/10.3390/min15050540
Chicago/Turabian StyleAndrew, Colin J., and John H. Ashton. 2025. "The B-Zone 4611 Silver-Rich Pod—An Unusual Ag-Ge-Sb-As-Ni Assemblage Within the Irish-Type Zn-Pb Silvermines Deposit, County Tipperary, Ireland" Minerals 15, no. 5: 540. https://doi.org/10.3390/min15050540
APA StyleAndrew, C. J., & Ashton, J. H. (2025). The B-Zone 4611 Silver-Rich Pod—An Unusual Ag-Ge-Sb-As-Ni Assemblage Within the Irish-Type Zn-Pb Silvermines Deposit, County Tipperary, Ireland. Minerals, 15(5), 540. https://doi.org/10.3390/min15050540