COPY OF FINAL PROSPECTUS - Mirabela Nickel
COPY OF FINAL PROSPECTUS - Mirabela Nickel
COPY OF FINAL PROSPECTUS - Mirabela Nickel
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GLOSSARY <strong>OF</strong> TECHNICAL TERMS<br />
The following is a glossary of technical terms and abbreviations that appear in the prospectus.<br />
assay .................. an analysis to determine the presence, absence and quantity of one or more<br />
elements.<br />
Au.................... the chemical symbol for gold.<br />
basalt .................. dark-colored mafic igneous rocks, commonly extrusive but locally intrusive<br />
(i.e. as dikes), composed chiefly of calcic plagioclase and clinopyroxene.<br />
bornite ................. a sulphide mineral with chemical composition Cu 5 FeS 4 that crystallizes in the<br />
cubic system. It has a brown to copper-red color on fresh surfaces that<br />
tarnishes to an iridescent purple surface. Its purple to bronze iridescence<br />
gives it the nickname peacock ore. Bornite is an important copper ore<br />
mineral and occurs widely in porphyry copper deposits along with the more<br />
common chalcopyrite.<br />
bronzitite ............... an orthopyroxenite mineral dominated by the mineral hypersthene.<br />
chalcocite ............... copper(I) sulfide (Cu 2 S): is an important copper ore mineral. It is opaque,<br />
being colored dark-gray to black with a metallic luster.<br />
chalcopyrite ............. CuFeS 2 , a common copper sulphide mineral.<br />
charnockite ............. an assemblage of rock types, connected in their origin because arising by<br />
differentiation of the same parent magma. The banded structure which these<br />
rocks commonly present in the field is only in a small measure due to<br />
crushing, but is to a large extent original, and has been produced by fluxion in<br />
a viscous crystallizing intrusive magma, together with differentiation or<br />
segregation of the mass into bands of different chemical and mineralogical<br />
composition.<br />
chrysotile ............... an asbestiform sub-group within the serpentine group of minerals.<br />
clinopyroxene ............ a group name for a number of pyroxene minerals that have similar crystal<br />
forms. They are silicates commonly containing aluminum, magnesium,<br />
calcium, and iron in their crystal structures.<br />
Co.................... is the chemical symbol for cobalt.<br />
colloform ............... pertaining to the rounded, globular texture of mineral formed by colloidal<br />
precipitation.<br />
craton ................. a large, usually ancient and stable mass of the earth’s crust.<br />
Cu.................... is the chemical symbol for copper.<br />
cubanite ................ copper and iron sulfide mineral (CuFe 2 S 3 ) that characteristically occurs with<br />
chalcopyrite or pyrrhotite in deposits formed at high temperatures.<br />
cut-off ................. the grade above which material is considered significant and below which<br />
material is not considered significant and is excluded form resource and<br />
reserve estimates.<br />
dilution ................ non-ore material included by mining process and fed to mill.<br />
disseminated sulphide ...... a sulphide deposit, in which the sulphide is non-contiguous and may range<br />
from less than 1% up to about 10% of the total rock. The sulphide occurs as<br />
individual crystals or small crystalline masses in the interstices of other<br />
non-sulphide minerals composing the rock.<br />
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