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ironstone
(redirected from ironstones)

   Also found in: Medical, Encyclopedia, Wikipedia 0.03 sec.
i·ron·stone  (rn-stn)
n.
1. A hard white pottery.
2. A rock containing enough iron to permit commercial extraction; an iron ore.

ironstone [ˈaɪənˌstəʊn]
n
1. (Earth Sciences / Geological Science) any rock consisting mainly of an iron-bearing ore
2. (Fine Arts & Visual Arts / Ceramics) Also called ironstone china a tough durable earthenware
Translations
ironstone [ˈaɪənˌstəʊn] N (= china) → porcelana f resistente
ironstone [ˈaɪənstəʊn] nminerale m di ferro
ironstone [ˈaɪənstəʊn] nminerale m di ferro


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The Yagba and Batis prospects currently cover at least five substantial west-northwest trending gold in soil anomalies (30 ppb Au threshold with more intense eyes of greater than 100 ppb Au) of 1,500-2,500 metres length, that are underlain by an intercalated sequence of banded ironstones, chlorite-sericite schists, amphibolites and quartz-biotite schists (greywackes).
The anomaly is underlain by banded ironstones, schists with alteration similar to that within the Bambari Permits suggesting that the belt is of Archaean age.
Overlying the ironstone on the flanks of the fold are highly weathered saprolitic clays, poorly developed ironstones and cherts.
 
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