NEW ZEALAND CLAYS
RESULTS OF TESTS
From Our Parliamentary Correspondent
WELLINGTON, This Day.
Work has been quietly continued on Now Zealand clays, and by combining firing tests with chemical analysis a largo amount of valmtKe ■ information is being steadily accumulated, states tho annual report of’ the Dominion Laboratory. The best clays received were a light coloured' highly tefrabtory clay resulting from the deccfmposition of rhyolite, from, Whangareij porcelain clay from Tadmor, Nelson; and clay with excellent moulding properties yielding bricks and tiles of smooth exterior and pleasing appearance, from Mangawhero stream, Oterohanga. Quite a number were suited for tho manufacture of ordinary bricks if burned between certain limits of temperature. Several exhibited defects. Specimens of all Samples were received and small bricks and tiles made from them are kept in tho laboratory and may be inspected by any one who desires information on tho day resources. The work so far is of a preliminary nature only and is capable of great extension. The grading and , blending oi tho clays are subjects that remain practically untouched.-' V '
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Bibliographic details
Nelson Evening Mail, Volume LIV, 13 December 1921, Page 5
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176NEW ZEALAND CLAYS Nelson Evening Mail, Volume LIV, 13 December 1921, Page 5
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