The geology of the Dun Mountain subdivision, Nelson . I Dunitk, Dun Mountain. Showing Grains of Chromite, surrounded bi Grains oi Olivine >: 25.•_. Serpentina Dub Mountain, with Grains of Chromite. s Harzb iii:, VVairoa River. Showing Picotite(?), with \ [.ahgi Crtstal oi Enstatite on the Right. The Rest Olivine, x Harzburgite, Lee River. Crystal oi Enstatite lndergoing Change ro Bastite. x •;. Geo. Hull- No. To fact pagi SO (1.) (2.) (3.) 39-10 4<)-78 17-oo 410 147 2-20 4-88 2-88 3-37 1-8H 3-31 2-92 Olio 0-55 0-56 L-50 21-69 16-60 3:3 id 17-92 21-87 (ilo (118 0-16 008 0
The geology of the Dun Mountain subdivision, Nelson . I Dunitk, Dun Mountain. Showing Grains of Chromite, surrounded bi Grains oi Olivine >: 25.•_. Serpentina Dub Mountain, with Grains of Chromite. s Harzb iii:, VVairoa River. Showing Picotite(?), with \ [.ahgi Crtstal oi Enstatite on the Right. The Rest Olivine, x Harzburgite, Lee River. Crystal oi Enstatite lndergoing Change ro Bastite. x •;. Geo. Hull- No. To fact pagi SO (1.) (2.) (3.) 39-10 4<)-78 17-oo 410 147 2-20 4-88 2-88 3-37 1-8H 3-31 2-92 Olio 0-55 0-56 L-50 21-69 16-60 3:3 id 17-92 21-87 (ilo (118 0-16 008 005 0-06 * 0-09 007 Nil Nil 13-76 100-13 2-35 519 100-27 LOO-00 * Undetermined. 31 Tlie tollowin<r analysts show the chemical composition of the two minerals composingthe websterite :— Silica (Si02) Alumina (A1203) Ferric oxide (Fe203) Ferrous oxide (FeO) Manganous oxide (MnO) Lime (CaO) Magnesia (MgO) (hromium-sesquioxide (Cr.,0.,) Titanium-dioxide (TiO.,) Potash (K.,0) | Soda (Na20) I < larbonic anhydride (COa) Loss on ignition (1.)
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectgeology, bookyear1911
