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21 - 30 of 114 search results for Magnette or magnetite
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  2. L141 - gabbro · Igneous Rocks · 1A Collections

    https://p1acollections.esc.cam.ac.uk/p1acollections/exhibits/show/igneous-rocks/l141.html
    9 Apr 2024: The olivine has decomposed to magnetite and serpentine. Relict olivine grains display characteristic curving cracks andClinopyroxene (augite). - ... Some simple twinning. Accessory minerals. - Opaque, interstitial, probably magnetite. Rock History.
  3. L162 - porphyritic basalt · Igneous Rocks · 1A Collections

    https://p1acollections.esc.cam.ac.uk/p1acollections/exhibits/show/igneous-rocks/l162.html
    9 Apr 2024: Some areof magnetite, clinopyroxene and other minerals. Extensive alteration along abundant cracks. ... Groundmass. - Fine-grained. Plagioclase feldspar needles, clinopyroxene, some olivine (mostly altered), and opaques, probably magnetite.
  4. Mica, biotite` · Minerals · 1A Collections

    https://p1acollections.esc.cam.ac.uk/p1acollections/exhibits/show/minerals/biotite.html
    9 Apr 2024: Mica, biotite. hand specimen of biotite mica. Crystals of bioitie mica with perfect basal cleavage. Biotite sheet silicate crystal structure, CrystalMaker. Formula. K. 2. (Mg,Fe. 2+. ). 6-4. (Fe. 3+. ,Al,Ti). 0-2. [Si. 6-5. Al. 2-3. O. 20. ](OH,F).
  5. Hematite · Minerals · 1A Collections

    https://p1acollections.esc.cam.ac.uk/p1acollections/exhibits/show/minerals/hematite.html
    9 Apr 2024: Bottryoidal hematite crystal. Hematite crystal strucutre, CrystalMaker. Formula. Fe. 2. O. 3. Structure. Non-silicate. Crystal System. Crystal system: trigonal (-). Physical Properties. Colour in hand specimen: black, steel-grey and bright to dull
  6. X-ray Diffraction from a mixture of Austenite, Ferrite and Cementite

    www.phase-trans.msm.cam.ac.uk/2007/Mixture/mixture.html
    14 Feb 2020: C. Synchrotron X-ray Diffraction from a mixture of Austenite, Ferrite and Hametite, Magnetite.
  7. The structure of cementite

    www.phase-trans.msm.cam.ac.uk/2003/Lattices/cementite.html
    14 Feb 2020: It has been demonstrated that cementite can be made by carburising magnetite (Fe.
  8. 10 Apr 2011: When magnetite forms within the wall, a tubemay grow curved in an external magnetic field. ... 5D, with orange lepidocrocite, black magnetite,and GR2), just as in the tube wall.
  9. Minerals · 1A Collections

    https://p1acollections.esc.cam.ac.uk/p1acollections/exhibits/show/minerals.html
    9 Apr 2024: Minerals. Rocks comprise minerals. In order to understand the paragenesis of a rock, be it igneous, sedimentary or metamorphic, we must identify its constituent minerals. The aim of this collection is to detail the structural, physical and optical
  10. Browse Items · 1A Collections

    https://p1acollections.esc.cam.ac.uk/p1acollections/items/browse%3Ftags=igneous.html
    9 Apr 2024: Browse Items (7 total). Tags: igneous. Sort by:. Formula Ca5(PO4)3(OH,F,Cl) Structure Non-silicate Crystal System Crystal system: hexagonal (-) Physical Properties Colour in hand specimen: green, white, yellow, blue brown etc.Hardness: 5 Optical
  11. L102 Hornblende biotite granite · 1A Collections

    https://p1acollections.esc.cam.ac.uk/p1acollections/exhibits/show/igneous-rocks/item/4.html
    9 Apr 2024: Strongly pleochroic in reddish brown and pale straw. Often associated with small grains of an opaque accessory mineral, probably magnetite.

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