• Thumbnail for Tetragonal crystal system
    In crystallography, the tetragonal crystal system is one of the seven crystal systems. Tetragonal crystal lattices result from stretching a cubic lattice...
    5 KB (191 words) - 17:48, 17 June 2025
  • Thumbnail for Crystal system
    common lattice system are combined into a crystal family. The seven crystal systems are triclinic, monoclinic, orthorhombic, tetragonal, trigonal, hexagonal...
    30 KB (1,447 words) - 22:16, 30 May 2025
  • Thumbnail for Zircon
    Zircon (category Tetragonal minerals)
    present in quantities ranging from 1 to 4%. The crystal structure of zircon is tetragonal crystal system. The natural color of zircon varies between colorless...
    32 KB (3,265 words) - 21:53, 23 May 2025
  • most of British Columbia Body Centered Tetragonal, a type of crystal structure, see Tetragonal crystal system Business Chinese Test, see List of language...
    1 KB (217 words) - 15:23, 26 August 2024
  • Thumbnail for Protactinium(IV) chloride
    of PaCl4. It is a chartreuse-coloured (yellowish-green) crystal of the tetragonal crystal system. Protactinium(IV) chloride can be prepared by the reduction...
    4 KB (313 words) - 10:00, 7 July 2025
  • Thumbnail for Fluorapophyllite-(K)
    Fluorapophyllite-(K) (category Tetragonal minerals)
    apophyllite group. Fluorapophyllite crystallizes in the tetragonal crystal system. Tetragonal minerals have three axes of different lengths and angles...
    4 KB (328 words) - 21:28, 18 July 2025
  • Thumbnail for Chatkalite
    Chatkalite (category Tetragonal minerals)
    sulfide mineral with formula Cu6Fe2+Sn2S8. It crystallizes in the tetragonal crystal system and forms as rounded disseminations within tetrahedrite in quartz...
    6 KB (546 words) - 14:43, 9 July 2025
  • Uramphite (category Tetragonal minerals)
    uranyl phosphate. Uramphite crystallizes in the tetragonal crystal system and develops rectangular crystal faces approximately 0.2 mm wide, but is also found...
    14 KB (1,231 words) - 15:09, 14 January 2025
  • is a grouping of mainly phosphate and vanadate minerals in the tetragonal crystal system. They are chemically related to the monoclinic monazite group...
    1 KB (86 words) - 11:11, 7 June 2025
  • Thumbnail for Sellaite
    Sellaite (category Tetragonal minerals)
    fluoride mineral with the formula MgF2. It crystallizes in the tetragonal crystal system, typically as clear to white vitreous prisms. It may be fibrous...
    3 KB (201 words) - 01:03, 8 November 2024
  • Thumbnail for Minium (mineral)
    Minium (mineral) (category Tetragonal minerals)
    typically occurs in scaly-to-earthy masses. It crystallizes in the tetragonal crystal system. Minium is rare and occurs in lead-mineral deposits that have...
    4 KB (298 words) - 02:32, 7 September 2024
  • Markov in 1971. It has the elemental formula PbTiO3 and exhibits tetragonal crystal system. The type locality is near Crni Kamen, Selecka Planina, Prilep...
    3 KB (111 words) - 09:37, 21 August 2024
  • , r h , h , c } {\displaystyle x\in \{t,m,o,q,rh,h,c\}} is the lattice system, and y ∈ { ∅ , b , v , f } {\displaystyle y\in \{\emptyset ,b,v,f\}} is...
    60 KB (1,195 words) - 10:52, 24 June 2025
  • Thumbnail for Cubic crystal system
    In crystallography, the cubic (or isometric) crystal system is a crystal system where the unit cell is in the shape of a cube. This is one of the most...
    49 KB (3,612 words) - 09:14, 7 May 2025
  • Thumbnail for Stolzite
    Stolzite (category Tetragonal minerals)
    Stolzite crystallizes in the tetragonal crystal system and is dimorphous with the monoclinic form raspite. Lead tungstate crystals have the optical transparency...
    5 KB (334 words) - 19:38, 19 January 2024
  • Thumbnail for Chalcopyrite
    Chalcopyrite (category Tetragonal minerals)
    mineral. It has the chemical formula CuFeS2 and crystallizes in the tetragonal system. It has a brassy to golden yellow color and a hardness of 3.5 to 4...
    23 KB (2,282 words) - 01:10, 17 July 2025
  • Thumbnail for Åkermanite
    Åkermanite (category Tetragonal minerals)
    has a white streak and a vitreous or resinous luster. It has a tetragonal crystal system and a good, or distinct, cleavage. It is the end member in a solid...
    4 KB (243 words) - 20:36, 9 January 2024
  • Thumbnail for Wakefieldite
    Wakefieldite (category Tetragonal minerals)
    phosphate anion is replaced by the larger vanadate anion, the tetragonal crystal system preferentially accommodates the larger light rare-earth elements...
    4 KB (249 words) - 23:08, 12 February 2023
  • Thumbnail for Braggite
    Braggite (category Tetragonal minerals)
    of 10), steel grey, opaque mineral which crystallizes in the tetragonal crystal system. It is the central member in the platinum group end-members cooperite...
    9 KB (884 words) - 20:45, 17 January 2024
  • bromine with the chemical formula ErOBr. The compound forms crystals of the tetragonal system, space group P4/nmm. Russian Journal of Inorganic Chemistry...
    2 KB (77 words) - 01:09, 17 July 2025
  • Thumbnail for Mackinawite
    Mackinawite (category Tetragonal minerals)
    Ni) 1+xS (where x = 0 to 0.11). The mineral crystallizes in the tetragonal crystal system and has been described as a distorted, close packed, cubic array...
    12 KB (1,014 words) - 23:28, 23 March 2025
  • Thumbnail for Crystal twinning
    {1122}, which is often caused by accidents during growth. In the tetragonal system, cyclical contact twins are the most commonly observed type of twin...
    52 KB (6,019 words) - 11:07, 2 July 2025
  • Thumbnail for Scheelite
    Scheelite (category Tetragonal minerals)
    with occasional traces of yellow-orange scheelite. Its crystals are in the tetragonal crystal system, appearing as dipyramidal pseudo-octahedra. Colors include...
    12 KB (1,174 words) - 13:03, 9 May 2025
  • Thumbnail for Pinnoite
    Pinnoite (category Tetragonal minerals)
    in the tetragonal crystal system and occurs as colorless to yellow or light green radial fibrous clusters and rarely as short prismatic crystals. Pinnoite...
    3 KB (158 words) - 21:39, 13 August 2023
  • Thumbnail for Wakefieldite-(La)
    Wakefieldite-(La) (category Tetragonal minerals)
    Wakefieldite with the ideal formula LaVO4. As a vanadate in the tetragonal crystal system, the rare-earth mineral is a member of the xenotime group. Wakefieldite-(La)...
    3 KB (161 words) - 13:23, 28 May 2025
  • Thumbnail for Wulfenite
    Wulfenite (category Tetragonal minerals)
    "yellow lead ore". It crystallizes in the tetragonal system, often occurring as stubby, pyramidal or tabular crystals. It also occurs as earthy, granular masses...
    20 KB (2,323 words) - 16:42, 20 June 2025
  • Thumbnail for Crystal structure
    crystal lattice. Some directions and planes are defined by symmetry of the crystal system. In monoclinic, trigonal, tetragonal, and hexagonal systems...
    46 KB (5,173 words) - 05:44, 7 July 2025
  • Thumbnail for Ferronickel platinum
    Ferronickel platinum (category Tetragonal minerals)
    in a ratio of 2:1:1. Ferronickel platinum crystallizes in the tetragonal crystal system, but has so far only been found in microcrystalline form. Ferronickel...
    11 KB (1,103 words) - 18:14, 9 April 2024
  • Thumbnail for Leucite
    Leucite (category Tetragonal minerals)
    Rath in 1873 led him to refer the crystals to the tetragonal system. Optical investigations have since proved the crystals to be still more complex in character...
    5 KB (389 words) - 07:19, 2 March 2025
  • axis. Uniaxial crystals belong to the tetragonal, hexagonal, or trigonal crystal systems (for example, calcite and quartz). In these crystals, the optic axis...
    3 KB (377 words) - 18:01, 15 July 2025