Schoenfliesite, MgSn(OH)6*
Abstract
A new tin mineral, magnesium hexahydroxostannate, MgSn(OH)6, occurs as a late-stage hydrothermal alteration product in a contact-metamorphic zone on Brooks Mountain, Seward Peninsula, Alaska. The chemical formula was derived from analysis of a mixture, and electron-microprobe study confirms the assigned composition. The mineral is soluble in HCl and slowly soluble in NaOH. The symmetry is cubic, space group Th2–Pn3, a = 7.759 ± 0.006 Å, Z = 4, density (calc.) 3.483 g/cm3. The four strongest lines in the x-ray diffraction powder pattern are 3.88 Å (100), 4.48 Å (50), 2.74 Å (25), and 1.733 Å (25). Differential thermal analyses of natural and synthetic material are in agreement. The name is given in honor of the mathematical crystallographer, Artur Moritz Schoenflies. Some crystallographic data and the densities of magnesium orthostannate and magnesium metastannate are also presented.
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Artikel in diesem Heft
- The average structure of Mg[Al2Si3O10], a stuffed derivative of the high-quartz structure*
- The probability distributions of several structure factors and their magnitudes
- Ordering of Mg and Nb in the octahedral positions of the “cubic” perovskite structure of Pb3MgNb2O9
- The crystal and molecular structure of [Ni(C5H8O2)2(H2O)2](ClO4)2
- The crystal chemistry of diaboleite*
- Automatic procedure for crystal-structure analysis with the heavy-atom technique*
- Structure of an eighteen-layered polytype of cadmium iodide
- A one-term Gaussian representation of the x-ray scattering factor of core electrons
- Physikalische Eigenschaften von KJO3
- Schoenfliesite, MgSn(OH)6*
- The structure of α-type cesium antimony nonachloride, Cs3Sb2Cl9
- Über zwei verschiedene Arten von Satellitenreflexen, beobachtet an einem Tieftemperatur-Plagioklas An16,5
- Suggestion for improving Patterson and difference Fourier maps
- Crystal data of androsterone, C19H30O2
- Crystal data for testosterone, C19H28O2
- Two structure types of cesium antimony nonachloride, Cs3Sb2Cl9
- Crystal data for some β-diketone chelates of (1,6-dichloro-1,5-cyclooctadiene) rhodium
Artikel in diesem Heft
- The average structure of Mg[Al2Si3O10], a stuffed derivative of the high-quartz structure*
- The probability distributions of several structure factors and their magnitudes
- Ordering of Mg and Nb in the octahedral positions of the “cubic” perovskite structure of Pb3MgNb2O9
- The crystal and molecular structure of [Ni(C5H8O2)2(H2O)2](ClO4)2
- The crystal chemistry of diaboleite*
- Automatic procedure for crystal-structure analysis with the heavy-atom technique*
- Structure of an eighteen-layered polytype of cadmium iodide
- A one-term Gaussian representation of the x-ray scattering factor of core electrons
- Physikalische Eigenschaften von KJO3
- Schoenfliesite, MgSn(OH)6*
- The structure of α-type cesium antimony nonachloride, Cs3Sb2Cl9
- Über zwei verschiedene Arten von Satellitenreflexen, beobachtet an einem Tieftemperatur-Plagioklas An16,5
- Suggestion for improving Patterson and difference Fourier maps
- Crystal data of androsterone, C19H30O2
- Crystal data for testosterone, C19H28O2
- Two structure types of cesium antimony nonachloride, Cs3Sb2Cl9
- Crystal data for some β-diketone chelates of (1,6-dichloro-1,5-cyclooctadiene) rhodium
