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Matthiasweilite, PbTe4+O3, a New Tellurite Mineral from the Delamar Mine, Lincoln County, Nevada, USA
Citation
Kampf, AR and Missen, OP and Mills, SJ and Ma, C and Housley, R and Chorazewicz, M and Marty, J and Coolbaugh, MF and Momma, K, Matthiasweilite, PbTe4+O3, a New Tellurite Mineral from the Delamar Mine, Lincoln County, Nevada, USA, The Canadian Mineralogist, 60, (5) pp. 805-814. ISSN 1499-1276 (2022) [Refereed Article]
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DOI: doi:10.3749/canmin.2200015
Abstract
Matthiasweilite (IMA2021-069), Pb2+Te4+O3, is a new mineral discovered at the Delamar mine, Lincoln County, Nevada, USA. It is a secondary mineral, associated with adanite, choloalite, northstarite, and other oxysalts in a quartz-rich matrix, that developed in an altered primary ore along with altaite, tetrahedrite-(Zn), native gold, and other sulfides and selenides. The mineral occurs as tightly intergrown masses of light yellow crystals. The streak is white, luster is adamantine, Mohs hardness is 2½, tenacity is brittle, and fracture is conchoidal; no obvious cleavage is present. The calculated density is 7.282 g/cm3 for the empirical formula. Data from electron probe microanalysis and assuming O = 3 gives the empirical formula Pb0.99Te4+1.01O3. Matthiasweilite is triclinic, space group P, with cell parameters a = 7.0256(4), b = 10.6345(6), c = 11.9965(8) Å, α = 78.513(6), β = 83.104(6), γ = 84.083(6)°, V = 869.10(9) Å3, and Z = 10. The crystal structure (R1 = 0.0523 for 3416 I > 2σI reflections) consists of Te4+O3 trigonal pyramids that are linked via relatively short (<2.6 Å) Pb–O bonds to form a framework.
Item Details
| Item Type: | Refereed Article |
|---|---|
| Keywords: | matthiasweilite, new mineral, tellurite, crystal structure, Raman spectrum, Delamar mine, Lincoln County, Nevada, USA |
| Research Division: | Earth Sciences |
| Research Group: | Geology |
| Research Field: | Mineralogy and crystallography |
| Objective Division: | Mineral Resources (Excl. Energy Resources) |
| Objective Group: | Other mineral resources (excl. energy resources) |
| Objective Field: | Other mineral resources (excl. energy resources) not elsewhere classified |
| UTAS Author: | Missen, OP (Dr Owen Missen) |
| ID Code: | 154979 |
| Year Published: | 2022 |
| Deposited By: | CODES ARC |
| Deposited On: | 2023-01-20 |
| Last Modified: | 2023-01-25 |
| Downloads: | 0 |
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