LIMONITE FOR STOCK LICK
Samples of limonite rock from the Okaihau quarries recently tested have been found to be very variable in cobalt content.. Among the deposits being worked are some that contain over 250 parts per million of cobalt. Recent experiments indicate that cobalt is the element present in limonites-which is chiefly. responsible for their beneficial effect when used as stock lick in bush sick country. Ruatangata limonite, which has given such good • results, usually contains from 50 to 100 parts per million o£ cobalt, but it is quite probable that deposits of higher cobalt content may exist in this locality. There are some indications that nickel, zinc, and' perhaps other trace elements may exert a beneficial effect in addition to that of cobalt, so that it is impossible at present to evaluate a limonite for stock lick'purposes solely on' its cobalt' content. The determination of some of these trace elements in a variety of limonites is at present in progress.
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https://paperspast.natlib.govt.nz/newspapers/EP19370218.2.144.9
Bibliographic details
Evening Post, Volume CXXIII, Issue 41, 18 February 1937, Page 12
Word Count
162LIMONITE FOR STOCK LICK Evening Post, Volume CXXIII, Issue 41, 18 February 1937, Page 12
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