Mt. Hope Project - Technical Glossary
AA |
Atomic absorption. |
Alteration |
Changes in the chemical or mineralogical composition of a rock by hot aqueous solutions. |
ANFO |
An explosive composition consisting of an oxidizing agent such as ammonium nitrate and a fuel material that may include a fuel oil and which also comprises a solid fuel such as rubber particles or polystyrene. |
Apophyses |
A small dike or sill injected from a larger intrusive body into adjacent rocks. |
Aqua regia |
A mixture of hydrochloric and nitric acids capable of dissolving many metals including gold. |
Assay |
An analysis to determine the proportions of metals or other valuable commodities in a sample. |
Bedrock |
Solid rock exposed at the surface of the Earth or overlain by unconsolidated material, weathered rock or soil. |
Block model |
Representation of a mineral deposit by a three dimensional array of blocks. |
Chalcopyrite |
A copper iron sulfide mineral. |
Cm(s) |
Centimeters. |
Deposit |
Natural occurrence of a useful mineral. |
Diamond drilling |
A type of rotary drilling in which bits containing diamonds are used as the rock-cutting tool and core is usually recovered. |
Dike |
A planar intrusion that cuts bedding or layering of the surrounding rocks. |
FeMo |
Ferromolybdenum. |
g |
Gram. |
GPS |
Global positioning system. |
Grade |
Relative quantity or the percentage of ore mineral or metal content in an orebody. |
HDPE |
High density polyethylene. |
HQ |
2.5 inches diameter drill core. |
HQ core size |
Drill core with a diameter of 2.5 inches. |
km(s) |
Kilometers. |
K tonnes |
A measure of weight equal to 1,000 tonnes. |
km 2 |
Square kilometers. |
kwh |
Kilowatt hours. |
lb or lbs |
Pounds. |
Lithologic |
Adjective from ‘lithology’ – pertaining to rock. |
M |
Meter. |
m 3 |
Cubic meter. |
Magmatic |
Of, pertaining to, or derived from naturally occurring molten rock material. |
Mill |
Equipment used to grind crushed rock to the desired size for mineral extraction. |
Mineralization |
The presence of minerals of possible economic value – and also the process by which concentration of economic minerals occurs. |
Mm |
Millimeters. |
Mo |
Molybdenum. |
MoS 2 |
Molybdenite. |
NQ |
1.87 inches diameter drill core. |
NQ size core |
Drill core with a diameter of 1.87 inches. |
Open pit |
A large-scale hard-rock surface mine. |
Ore |
A mineral or aggregate of minerals which can be commercially mined at a profit. |
Ounce or oz |
Troy ounce (= 31.1035 grams). |
Potassic Alteration |
Rock characterized by potassium-feldspar minerals. |
Pyrite |
An iron sulfide mineral. |
RC |
Reverse circulation. |
Rhyolite |
Rhyolite is a type of lava. |
SAG mill |
Semi autogenous grinding mill. |
Silicate |
A compound whose crystal lattice contains the silicate tetrahedron. |
Sill |
An intrusion that is sheet-like and parallel to bedding or layering in the host rocks. |
SX-EW |
Solvent Extraction Electrowinning. |
Tailings |
The gangue and other refuse material resulting from the washing, concentration or treatment of ground ore. |
TMO |
Technical grade molybdenum oxide. |
Toll |
Royalty on minerals. |
Toll Roasting |
Roasting third party molybdenum concentrates. |
Ton |
A measure of weight equal to 2,000 pounds. |
Tonne |
A measure of weight equal to 1,000 kilograms or 2,204.6 lbs. |
Tuff |
Rock formed from volcanic ash. |
UTM |
Universal Transverse Mercator – a commonly used map projection system. |
Vein |
A tabular deposit of minerals occupying a fracture, in which particles may grow away from the walls towards the middle. |
Imperial Measure |
Metric Unit |
Imperial Measure |
Metric Unit |
1 acre |
= 0.4047 hectare |
1 mile |
= 1.6093 kilometers |
1 foot |
= 0.3048 meter |
1 troy ounce |
= 31.1035 grams |
1 gram per metric tonne |
= 0.0292 troy ounce/ short ton |
1 square mile |
= 2.59 square kilometers |
1 short ton (2,000 pounds) |
= 0.9072 tonne |
1 hectare |
= 100 square kilometers |
1 tonne |
= 1,000 kg or 2,204.6 pounds (lbs) |
1 acre |
= 2.47 1 hectares |
1 hectare |
= 10,000 square meters |
