...).] As curved cube faces can be inclined up to 30° from true cubic directions ( Lang 1974a ; Suzuki and Lang 1976 ) and because of all their other characteristics, diamonds with this habit are better termed ‘cuboid’. Within the smaller diamond sizes (1–2 mm) flat faced and more regular shaped cubes exist...

... to estimate some of the trace element compositions in the primitive magma. Apatite from the lherzolite: The hexagonal habit of apatite in the lherzolite from the Jinchuan intrusion is typical of a magmatic origin and crystallization under near-equilibrium conditions (e.g.,  Webster and Piccoli, 2015...

...Ping Wang; Thomas P. Gray; Zhe Li; Evan J.D. Anderson; Julien Allaz; Joseph R. Smyth; Alan E. Koenig; Lijian Qi; Yan Zhou; Markus B. Raschke Abstract Beryl from Xuebaoding, Sichuan Province, western China is known for its unusual tabular habit and W–Sn–Be paragenesis in a greisen-type deposit...

.... 35 Ma Chesapeake Bay impact event which, remarkably, experienced near-complete conversion (89%) to reidite. The grain displays two distinctive reidite habits: (1) intersecting sets of planar lamellae that are dark in cathodoluminescence (CL); and (2) dendritic epitaxial overgrowths on the lamellae...

... display a non-fibrous habit (bladed, lamellar, columnar, or prismatic), but the definition is to be applied in asbestos mines and product factories, where the vast majority of particles with an aspect ratio >3 will be asbestos. Nevertheless, the OSHA analytical method includes procedures (albeit...

..., in allusion to the green colour and lamellar crystal habit. Corresponding author, e-mail: igorpekov@mail.ru 20 05 2019 16 07 2019 25 07 2019 © 2019 E. Schweizerbart’sche Verlagsbuchhandlung, 70176 Stuttgart, Germany 2019 elasmochloite new mineral sodium copper bismuth...

... of a pre-existing crystal, or can be restricted to its edges and/or corners. Restricted seeding is often linked with changes of crystal habit resulting in the reorientation of the crystal's fastest growth direction and the direction of maturation. Some impingement intercrystalline boundaries have offset...

... County, California, U.S.A. It is an oxidation-zone mineral occuring in vugs. Crystals occur in a variety of habits, including bladed, acicular, steep pyramidal, and stepped tabular; they are generally elongate on [001] and exhibit the forms {001}, {110}, {111}, and . The mineral ranges in color from...

... not correspond to the planes with the highest reticular density, i.e ., those with the highest intensity in diffraction and highest probability to appear in the crystal habit. However, this indexing is confirmed by the analysis of interfacial angles: these were measured from a euclase crystal and compared...

... characteristics, besides being the most important relics of the technology. Due to their small size and growth habits, the micro-crystalline precipitates may remain unidentified on polished cross sections of the glazes. Thin-section petrography, combined with synchrotron-radiation X-ray micro-diffraction, appears...

... of one Luobusa (peridotite) diamond that shows flat dodecahedroid form ( Fig. 8 ). Figure 8. Mosaic image of crystal habit of microdiamonds. Scale bar for F is 200 µm; for all other images, scale bar is 20 µm. (A–C) Cubo-octahedral polycrystalline form, Ray-Iz diamonds. (D) Partial cubo-octahedral...