Lead-tellurium oxysalts from Otto Mountain near Baker, California: II. Housleyite, Pb6CuTe4O18(OH)2, a new mineral with Cu-Te octahedral sheets
-
Anthony R. Kampf
,
Joseph Marty
Abstract
Housleyite, Pb6CuTe4O18(OH)2, is a new tellurate from Otto Mountain near Baker, California, named in honor of Robert M. Housley. The new mineral occurs on fracture surfaces and in small vugs in brecciated quartz veins. Housleyite is directly associated with acanthite, cerussite, gold, iodargyrite, khinite-4O, wulfenite, and three other new tellurates: markcooperite, ottoite, and thorneite. A variety of other secondary minerals occur in the veins, including three other new secondary tellurium minerals, paratimroseite, telluroperite, and timroseite. Housleyite is monoclinic, space group P21/n, a = 7.8552(5), b = 10.4836(7), c = 11.0426(8) Å, β = 95.547(2)°, and Z = 2. Crystals are prismatic to bladed with elongation parallel to b and typically occur in bow tie-like aggregates, drusy balls, and irregular sprays. It is pale to medium greenish blue and transparent, with pale blue streak and adamantine luster. Mohs hardness is estimated at 3. The mineral is brittle, with an irregular fracture. Cleavage was not observed, but is likely on {101}. The calculated density is 7.845(1) g/cm3. Housleyite is biaxial (+), with 2V = 50° to 60° and strong inclined dispersion, r > v, but indices of refraction are too high to be measured. The optic orientation is Y = b, Z ^ c ≈ 40° in obtuse β and pleochroism is Y (medium green-blue) > Z (light green-blue) > X. Energy dispersive spectroscopy provided PbO 62.53, CuO 3.77, TeO3 32.85, H2O 0.84 (structure), total 99.99 wt%.; the empirical formula (based on O = 20) is Pb5.99Cu1.01Te4.00O18(OH)2. The strongest powder X-ray diffraction lines are [dobs in Å (hkl) I]: 3.336 (2̅02, 031, 122) 69, 3.292 (1̅13) 50, 3.195 (130, 103) 100, 3.068 (2̅21, 202) 47, 3.007 (023) 49, 2.942 (032, 212) 80, 2.723 (123, 2̅13, 132) 29, 2.580 (230, 3̅01, 2̅31) 38. The crystal structure (R1 = 0.028) consists of corner-sharing chains of TeO6 octahedra along [101] linked into slabs parallel to {101̅} by sharing edges and corners with strongly Jahn-Teller (4+2) distorted and severely skewed CuO6 octahedra. Lead (Pb) atoms in lopsided nine- and elevenfold coordinations form additional links within and between the octahedral sheets.
© 2015 by Walter de Gruyter Berlin/Boston
Articles in the same Issue
- Resonant X-ray emission study of the lower-mantle ferropericlase at high pressures
- Uranyl phosphate sheet reconstruction during dehydration of metatorbernite [Cu(UO2)2(PO4)2·8H2O]
- Detection of structurally bound hydroxyl in fluorapatite from Apollo Mare basalt 15058,128 using TOF-SIMS
- Quantum-mechanical evaluation of Np-incorporation into studtite
- Electronic structure and local environment of substitutional V3+ in grossular garnet Ca3Al2(SiO4)3: K-edge X-ray absorption spectroscopy and first-principles modeling
- Elbrusite-(Zr)—A new uranian garnet from the Upper Chegem caldera, Kabardino-Balkaria, Northern Caucasus, Russia
- What drives the distribution in nature of 3T vs. 2M1 polytype in muscovites and phengites? A general assessment based on new data from metamorphic and igneous granitoid rocks
- Radiation damage and uranium concentration in zircon as assessed by Raman spectroscopy and neutron irradiation
- The Cr X-ray absorption K-edge structure of poorly crystalline Fe(III)-Cr(III)-oxyhydroxides
- Protracted oceanic subduction prior to continental subduction: New Lu-Hf and Sm-Nd geochronology of oceanic-type high-pressure eclogite in the western Dabie orogen
- Time-resolved in situ studies of apatite formation in aqueous solutions
- X-ray Rietveld and 57Fe Mössbauer studies of epidote and piemontite on the join Ca2Al2Fe3+Si3O12(OH)–Ca2Al2Mn3+Si3O12(OH) formed by hydrothermal synthesis
- Elastic behavior of zeolite boggsite in silicon oil and aqueous medium: A case of high-pressure-induced over-hydration
- Low-temperature infrared spectroscopic study of OH-stretching modes in kaolinite and dickite
- Stability field of the high-temperature orthorhombic phase in the enstatite-diopside system
- Unique crystal chemistry of two polymorphs of topaz-OH: A multi-nuclear NMR and Raman study
- Crystal chemistry of chromian pumpellyite from Osayama, Okayama Prefecture, Japan
- Toturite Ca3Sn2Fe2SiO12—A new mineral species of the garnet group
- The structure of schwertmannite, a nanocrystalline iron oxyhydroxysulfate
- Crystal chemistry of Cr-spinels from the lherzolite mantle peridotite of Ronda (Spain)
- Lead-tellurium oxysalts from Otto Mountain near Baker, California: I. Ottoite, Pb2TeO5, a new mineral with chains of tellurate octahedra
- Lead-tellurium oxysalts from Otto Mountain near Baker, California: II. Housleyite, Pb6CuTe4O18(OH)2, a new mineral with Cu-Te octahedral sheets
- The behavior of the Hf isotope system in radiation-damaged zircon during experimental hydrothermal alteration
- Letter. Crystal structure of a new high-pressure polymorph of topaz-OH
- Letter. In situ 238U-230Th disequilibrium dating of pyrochlore at sub-millennial precision
Articles in the same Issue
- Resonant X-ray emission study of the lower-mantle ferropericlase at high pressures
- Uranyl phosphate sheet reconstruction during dehydration of metatorbernite [Cu(UO2)2(PO4)2·8H2O]
- Detection of structurally bound hydroxyl in fluorapatite from Apollo Mare basalt 15058,128 using TOF-SIMS
- Quantum-mechanical evaluation of Np-incorporation into studtite
- Electronic structure and local environment of substitutional V3+ in grossular garnet Ca3Al2(SiO4)3: K-edge X-ray absorption spectroscopy and first-principles modeling
- Elbrusite-(Zr)—A new uranian garnet from the Upper Chegem caldera, Kabardino-Balkaria, Northern Caucasus, Russia
- What drives the distribution in nature of 3T vs. 2M1 polytype in muscovites and phengites? A general assessment based on new data from metamorphic and igneous granitoid rocks
- Radiation damage and uranium concentration in zircon as assessed by Raman spectroscopy and neutron irradiation
- The Cr X-ray absorption K-edge structure of poorly crystalline Fe(III)-Cr(III)-oxyhydroxides
- Protracted oceanic subduction prior to continental subduction: New Lu-Hf and Sm-Nd geochronology of oceanic-type high-pressure eclogite in the western Dabie orogen
- Time-resolved in situ studies of apatite formation in aqueous solutions
- X-ray Rietveld and 57Fe Mössbauer studies of epidote and piemontite on the join Ca2Al2Fe3+Si3O12(OH)–Ca2Al2Mn3+Si3O12(OH) formed by hydrothermal synthesis
- Elastic behavior of zeolite boggsite in silicon oil and aqueous medium: A case of high-pressure-induced over-hydration
- Low-temperature infrared spectroscopic study of OH-stretching modes in kaolinite and dickite
- Stability field of the high-temperature orthorhombic phase in the enstatite-diopside system
- Unique crystal chemistry of two polymorphs of topaz-OH: A multi-nuclear NMR and Raman study
- Crystal chemistry of chromian pumpellyite from Osayama, Okayama Prefecture, Japan
- Toturite Ca3Sn2Fe2SiO12—A new mineral species of the garnet group
- The structure of schwertmannite, a nanocrystalline iron oxyhydroxysulfate
- Crystal chemistry of Cr-spinels from the lherzolite mantle peridotite of Ronda (Spain)
- Lead-tellurium oxysalts from Otto Mountain near Baker, California: I. Ottoite, Pb2TeO5, a new mineral with chains of tellurate octahedra
- Lead-tellurium oxysalts from Otto Mountain near Baker, California: II. Housleyite, Pb6CuTe4O18(OH)2, a new mineral with Cu-Te octahedral sheets
- The behavior of the Hf isotope system in radiation-damaged zircon during experimental hydrothermal alteration
- Letter. Crystal structure of a new high-pressure polymorph of topaz-OH
- Letter. In situ 238U-230Th disequilibrium dating of pyrochlore at sub-millennial precision
