where there is a change in the crystal structure. The third is deformation twinning, in which twinning develops in a crystal in response to a shear stress...
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Look up twinning in Wiktionary, the free dictionary. Twinning (making a twin of) may refer to: In biology and agriculture, producing two offspring (i.e...
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include: a combination of two or more crystal forms; trace impurities present during growth; crystal twinning and growth conditions (i.e., heat, pressure...
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faster, but the phase transition may induce twinning. Twinning can be mitigated by subjecting the crystal to compression stress in the X direction, or...
89 KB (9,470 words) - 22:48, 15 August 2024
triangles are linked together to form a three-dimensional structure. Crystal twinning is often present. It can be confused with the manganese silicate rhodonite...
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other in the mineral's crystal lattice structure. Plagioclase in hand samples is often identified by its polysynthetic crystal twinning or "record-groove"...
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Pericline (redirect from Pericline twinning)
exhibiting elongate prismatic crystals. Pericline twinning is a type of crystal twinning which show fine parallel twin laminae typically found in the...
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SnO2 ore, of about 7.0. Crystal twinning is common in cassiterite and most aggregate specimens show crystal twins. The typical twin is bent at a near-60-degree...
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as a "screaming" or "crackling" sound, the effect is caused by the crystal twinning in the metal. The sound is not particularly loud, despite terms like...
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6 to 6.5. Albite almost always exhibits crystal twinning often as minute parallel striations on the crystal face. Albite often occurs as fine parallel...
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striations on the prism faces are directed towards one end only of the crystal. Twinning according to several laws is not uncommon. The hexagonal prisms of...
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containing a twin boundary Twin house, semi-detached housing Twin towns and sister cities, towns and cities involved in town twinning Gemini Twin, an American...
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Clinohumite (section Crystal structure)
Clinohumite's crystal habit is usually granular, but may also be prismatic; crystals are almost always small. Simple and multiple crystal twinning (on {001})...
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pale-yellow, brick-red, or green; it is generally characterized by cross-hatch twinning that forms as a result of the transformation of monoclinic orthoclase into...
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effervesce (fizz) in cold dilute hydrochloric acid as calcite does. Crystal twinning is common. Solid solution exists between dolomite, the iron-dominant...
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specific patterns. Twinning is a phenomenon somewhere between a crystallographic defect and a grain boundary. Like a grain boundary, a twin boundary has different...
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crystalline lattice belonging to the trigonal crystal system, crystals that sometimes exhibit twinning. Cinnabar has been used for its color since antiquity...
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Lawsonite (section Crystal structure)
crystallizes in the orthorhombic system in prismatic, often tabular crystals. Crystal twinning is common. It forms transparent to translucent colorless, white...
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hardness of 4. It is translucent with perfect 010 cleavage and exhibits crystal twinning. It occurs commonly as an alteration product of corundum, andalusite...
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relatively low index of refraction. It has the orthorhombic crystal system and a dipyramidial crystal class. It occurs in many places in the world. Some of...
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Quasicrystal (redirect from Quasi-crystal)
explanation for a ten-fold symmetrical diffraction pattern, a type of crystal twinning, was ruled out by his experiments. Therefore, Blech looked for a new...
48 KB (5,257 words) - 15:50, 4 June 2024
Mineral (section Crystal structure and habit)
macroscopic differences. Twinning is the intergrowth of two or more crystals of a single mineral species. The geometry of the twinning is controlled by the...
109 KB (13,007 words) - 16:14, 20 July 2024
impressions, and its pseudomorphed crystals are often easily recognizable due to its common crystal twinning, and crystal habit displayed by uniquely shaped...
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InSight Mars lander Twins, in crystal twinning LG Twins, a Korean baseball team Minnesota Twins, an American baseball team Thunder Bay Twins, a defunct Canadian...
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occurs twinned in a characteristic cross-shape, called cruciform penetration twinning. In handsamples, macroscopically visible staurolite crystals are of...
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Fluorite crystallizes in a cubic motif. Crystal twinning is common and adds complexity to the observed crystal habits. Fluorite has four perfect cleavage...
34 KB (3,736 words) - 23:11, 23 July 2024
Craig, J. Cymerman (1969). "The Crystal Structure of Sodium Sulphite. A Refinement Allowing for the Effect of Crystal Twinning". Acta Chemica Scandinavica...
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It forms opaque silvery white orthorhombic prismatic crystals often exhibiting crystal twinning. It also occurs in anhedral masses and tarnishes on exposure...
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close-packed space-filling forms. Science portal Technology portal Crystal twinning Icosahedron Nanomaterial based catalyst Nanotechnology Quasicrystals...
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different crystal shape, an orthorhombic crystal system with acicular crystal. Repeated twinning results in pseudo-hexagonal forms. Aragonite may be columnar or...
19 KB (1,799 words) - 20:58, 18 July 2024