alteration product

39 examples (0.03 sec)
  • It is often coated with a yellow-brown alteration product, likely limonite.
  • After the nepheline alteration products are leached, small holes are formed on the rock.
  • Silica-rich solution provides such a reducing condition in cases where coffinite results as an alteration product of uraninite.
  • As stated above, pararealgar is an alteration product of realgar resulting from exposure to light.
  • It occurs as a secondary alteration product in lead ore deposits.
  • These ion arrangements within olivine control the structural orientation of the alteration products.
  • It forms as an alteration product of pyrite in aluminium rich rocks and in coal seams.
  • The old mineral name uralite is at times applied to an alteration product of primary pyroxene by a mixture composed largely of actinolite.
  • Palagonite is an alteration product from the interaction of water with volcanic glass of chemical composition similar to basalt.
  • It occurs as a secondary alteration product of other hydrothermal antimony minerals such as stibnite.
  • It is formed as an alteration product of chromite containing serpentine.
  • It often forms as an alteration product of sphalerite in altered massive sulphide deposits such as at Broken Hill, Australia.
  • Indeed, Ladenberg has recently succeeded in obtaining benzol as an alteration product from pyridine, in certain reactions. Cited from Scientific American Supplement, No. 415, December 15, 1883, by Various
  • It occurs as a secondary alteration product of spodumene.
  • Clay minerals are common weathering products (including weathering of feldspar) and low temperature hydrothermal alteration products.
  • It occurs in arid climates as a secondary alteration product of pyrite-bearing deposits.
  • The mineral sample's natural history was the end goal, a means of articulating the mineral's alteration products and pseudomorphs as a record of chemical change.
  • It occurs commonly as an alteration product of corundum, andalusite and other aluminous minerals.
  • It occurs as an alteration product of uraninite and primary selenium-bearing sulfides, such as penroseite.
  • Ilmenite is commonly recognized in altered igneous rocks by the presence of a white alteration product, the pseudo-mineral leucoxene.
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