diaspore


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diaspore

(dī′ə-spôr′)
n.
1. A white, pearly hydrous aluminum oxide, AlO(OH), found in bauxite, corundum, and dolomite and used as a refractory and abrasive.
2. Botany See disseminule.
References in periodicals archive ?
Mucilage may have functions other than adhering a diaspore to an animal; the possible functions of mucilage include: expediting seed hydration, regulating seed dormancy, and prevention of seed movement (antitelechory) or predation by adherence to substrate (Garcia-Fayos et al, 2010; Kreitschitz, 2009, 2012; Western, 2012; Yang et al.
Diaspores were collected at the Estacao Ecologica de Caiua, state of Parana, Brazil (52[degrees] 49' - 52[degrees] 53' W and 22[degrees] 34' - 22[degrees] 37' S).
During this study the diaspore samples were analyzed before and after thermal treatment in the context to ascertain the changes in the mineral in terms of the physical properties (density and bulk density), structure (XRD), and thermal behavior (TGA).
Comparison of Raman spectra in characterizing gibbsite, bayerite, diaspore and boehmite.
Just one shelf down from the diaspores at Graeber & Himes was a handful of truly magnificent fluorite specimens collected between June and August 2009 and in the spring of 2010 in the "rat tail" pocket--which is to say, Jesse Fisher explained, the "tail end" of the earlier "rat hole" pocket--in the Rogerley mine, Weardale, Durham, England.
A high-sulphidation (acid-sulphate) affinity is suggested by the pervasive presence of kaolite, prophyllite, and zunyite at El Toro, the diaspore at Santa Rosa, and the geochemical similarity to high-sulphidation deposits - such as those of Yanacocha and Tantahuaytay.
In this sense, one of the most important structural components of wetland ecosystems is the diaspore bank, defined as an aggregation of non germinated seeds, potentially capable of replacing adult plants (Bakker, 1989).
Lower Miocene leaf, palynomorph, and diaspore assemblages from the base of the lignite-bearing sequence in the opencast mine Obcrdorf, N Voitsberg (Styria, Austria) as an indication of <<Youngcr Mastixioid>> vegetation.
John Bradshaw, Coast-to-Coast Rare Stones International, Nashua, New Hampshire, USA, for 21 bags containing part-cut crystals of: apatite (Canada and Mexico), cassiterite (Namibia), celestine (Kansas, USA), cerrusite (Namibia), crocoite (Tasmania, Australia), diaspore (Turkey), oligoclase (Kenya), pollucite (Conneticut, USA), scheelite (Pakistan and Arizona, USA), smithsonite (Namibia), sphalerite (Spain), tourmaline (Maine, USA, and Afghanistan), tugtupite (Greenland), willemite/leucophoenicite (New Jersey, USA) and zincite on calcite (New Jersey); and also for 95 faceted mixed-shape tourmalines, mostly pink, green and blue.
The main minerals of this group are: Brucite, Geothite, Diaspore, Bauxite, Lepidocrocite, Manganite, Groutite, Stainierite and Chalcopanite that this project discusses the diaspore minerals and processing of them from the diaspore minerals.