page_title: Scrutinyite
section_title: Characterization
hierarchical_section_title: Scrutinyite / Characterization
caption_attribution_description: English: Crystal structure of the mineral scrutinyite (alpha PbO2). Red atoms are oxygens. Wyckoff R W G Crystal Structures 1 (1963) 239-444 Second edition. Interscience Publishers, New York. http://rruff.geo.arizona.edu/AMS/minerals/Scrutinyite
context_page_description: Scrutinyite is a rare oxide mineral and is the alpha crystalline form of lead dioxide, plattnerite being the other, beta form. The mineral was first reported in 1988 and its name reflects the scrutiny and efforts required to identify it from a very limited amount of available sample material.
context_section_description: The PbO₂ composition of scrutinyite was deduced by energy-dispersive X-ray spectroscopy. Slight oxygen deficiency is generally attributed to the surface effects, especially in thin samples, namely oxygen in the surface layers of PbO₂ is usually substituted by the hydroxyl groups.
  The crystal structure was deduced by XRD as orthorhombic, space group Pbcn (No. 60), Pearson symbol oP12, lattice constants a = 0.497 nm, b = 0.596 nm, c = 0.544 nm, Z = 4 (four formula units per unit cell) were in reasonable agreement with previous results obtained on synthetic samples.
caption: Crystal structure
exif: {}