NEW ZEALAND ORE.

Auckland Chronicle and New Zealand Colonist, Volume 2, Issue 7, 20 September 1843, Page 3

NEW ZEALAND ORE.

Fmm the Sydney Morning Herald, Aug. 21, 1843. To tlie Editors. Genti.kmkn, —A« much infer*at has been ex” cited I espt cuug tlie min-ral pioouctioiis of New Z -aland, the fodowm” analysis of a poriimi rif the bines oxide of mangaiiese may not be tm ocept side t'l sonic of your leader*. 1 tic liiti.e p loxidf (which is fnack, compaei and n as-ive.) .-a seltcled tor (wo exp nureuls, die result-- ot wllch are lie re detailed : No. i. 100 parts of the b!a< k me yieldt- d Parts. ‘ Manganese ■*' « Perox-denf \ ygeo ......•••**• -ff w IVI IVngaucst. P«C:xMe «t iron hofpftate of Baryta.... 9* > Loss iu Jilai gaat sic acid tvt*J 100 N». t!. Pans. Manganese Pc'-bJ'de r>f «#,.*• • • • •• 4 Ptrixide ot lfon .... ~ Sufpirate of Bard*.,.. s'o Less in Maiiganes !C acid 12*3 ItiO it will be perceived, by d e afundanee of the mangauesic acid, (wtucli i* m s probably ristive), that oxvgeis is Ure predominant clement of the ore. winch will account lor the facility with which it was c-usuiued in di- pahey fir-, as siated by Capiaiu Uaidy, On numtiimig the ore to the galvanic wires, a grey dull tneiai is observed at the negative po.e, which is manganese, liie positive being sligiidy c>xydi*ed. it would appear from these experim-«t 9 tlint the New Zealand ore is of sufficient purity tor all the purposes of art. (tlie manutac ure of cbioiide of lime, sod r, Arc.), a-uf for use in di" labor -tor y. Itis in fact preferable to that commonly sold in England, which is adulterated with cartmi’, and is productive of excessive anno' ance lo ihe chemist who fi ids oavhouio. aoid evolved when he ixp cts {Mire oxygen, A small specimen of b'ack ote, with metallic lustre was brought simm I’ort Moquarie three years ago, but whether it is abundant there was not stated. I am, Gcnderne- , Your oh-dir ».t servo it, SAVPEL MAaERLV. MaiketsstreclWest, Atignsi .7.