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habit

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Journal Article
Published: 20 February 2020
Environmental and Engineering Geoscience (2020) 26 (1): 3–8.
... exposure (the “amphibole hypothesis”). Hence, while there may be a belief in some quarters that EMP is an overly inclusive term, the same is also true for asbestos. There are at least 400 known mineral species that display a fibrous (or fibrous-asbestiform) crystal habit. Besides the six asbestos...
FIGURES
Journal Article
Published: 01 September 2019
European Journal of Mineralogy (2019) 31 (5-6): 1025–1032.
..., in allusion to the green colour and lamellar crystal habit. The specimen with the new mineral was collected from the central part of Arsenatnaya at about 1 m depth. The new mineral is associated with tenorite, hematite, langbeinite, aphthitalite, krasheninnikovite and johillerite. The temperature measured...
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Journal Article
Published: 01 May 2019
European Journal of Mineralogy (2019) 31 (3): 647–652.
FIGURES
Journal Article
Published: 28 January 2019
Journal of Sedimentary Research (2019) 89 (1): 66–87.
... 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...
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Journal Article
Published: 01 September 2018
The Canadian Mineralogist (2018) 56 (5): 763–772.
... 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...
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Journal Article
Published: 01 July 2017
The Canadian Mineralogist (2017) 55 (4): 799–820.
... ) and do 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...
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Journal Article
Published: 05 April 2017
European Journal of Mineralogy (2017) 29 (5): 861–870.
... 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...
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Journal Article
Journal: Lithosphere
Publisher: GSW
Published: 20 March 2017
Lithosphere (2018) 10 (1): 133–141.
... 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 form...
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Journal Article
Published: 13 February 2017
European Journal of Mineralogy (2017) 29 (5): 915–922.
... habit and form fairly disordered aggregates. The mineral is associated with a large number of primary minerals (roscoelite, pyrite, uraninite, coffinite, ‘carbon’, galena, sphalerite, nickeloan cobaltite, covellite, tennantite and chalcopyrite) and supergene minerals (hydrozincite, aragonite, gordaite...
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Journal Article
Published: 01 February 2017
American Mineralogist (2017) 102 (2): 381–390.
...Han Li; Qi-Zhi Yao; Sheng-Hui Yu; Ya-Rong Huang; Xiang-Dong Chen; Sheng-Quan Fu; Gen-Tao Zhou Abstract Bacterially mediated struvite usually crystallizes as unusual morphologies. To better understand the relationship between growth habit of struvite and bacterial activity in struvite...
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Journal Article
Published: 19 September 2015
The Canadian Mineralogist (2015) 53 (2): 221–234.
... produce the enrichment in Al which can be linked to the forming of the acicular habit. Aluminum strongly prefers the Z -site, whose octahedra form a network of chains parallel to c . Consequently, polymerization of the Z O 6 octahedral network will dominate growth in the a direction. Therefore...
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Journal Article
Published: 01 August 2015
European Journal of Mineralogy (2015) 27 (4): 575–580.
FIGURES
Journal Article
Journal: Geology
Published: 01 January 2015
Geology (2015) 43 (1): 63–66.
... NaFe 3+ -amphiboles have fibrous habit either as epitaxial overgrowths on, or as replacement of, magmatic hornblende. Hematite-after-magnetite replacement textures were observed in thin section adjacent to NaFe 3+ -amphibole veins. Veins and breccia zones filled with hematite are found in the field...
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Journal Article
Published: 01 October 2014
European Journal of Mineralogy (2014) 26 (5): 667–677.
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Journal Article
Published: 01 August 2014
European Journal of Mineralogy (2014) 26 (4): 495–505.
... scanned by AFM no crystal growth was observed over more than one hour of the experiment. The membrane was later allowed to dry out and observed under SEM. This examination allowed us to discern that very scattered rhombohedral calcite crystals ( Fig. 7a ), as well as some spherical crystals (with habits...
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Journal Article
Published: 01 August 2014
European Journal of Mineralogy (2014) 26 (4): 507–516.
... of calcite structures in pearls may not be compared to biomineral structures in shells, which are better defined in terms of crystal habit and present a more constrained crystallographic control, in addition to having a strong correlation between crystallization and the formation of organic envelopes...
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Journal Article
Published: 01 December 2013
European Journal of Mineralogy (2013) 25 (6): 1017–1030.
... tubular morphology is discussed within the general framework of crystals whose habit presents a circular symmetry. It is proposed that micro-tubes were initiated by capillary forces acting on very thin lamellar crystallites around gas bubbles or liquid droplets. * Corresponding author, e-mail...
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Journal Article
Published: 01 November 2013
American Mineralogist (2013) 98 (11-12): 1998–2006.
.... It occurs in an ash pellet-rich layer within the natrocarbonatite lava, as abundant groundmass crystals and as cores of individual ash pellets, with pseudocubic and pseudohexagonal habits, ranging from 50 to 100 μm in size, with numerous inclusions of nepheline laths aligned parallel to the crystal margins...
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Journal Article
Published: 01 May 2013
European Journal of Mineralogy (2013) 25 (2): 221–229.
... Al 10 Si 4 O 32 Cl 6 , was discovered in altered silicate-carbonate xenoliths in the diatreme facies of ignimbrites in the Upper Chegem caldera, Kabardino-Balkaria, Northern Caucasus, Russia. Eltyubyuite forms light-brown or yellow crystals with tetrahedral habit up to 10 μm across in rondorfite...
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Journal Article
Published: 01 May 2013
American Mineralogist (2013) 98 (5-6): 1008–1016.
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