Browse "Mining and Metallurgy"

Displaying 21-40 of 41 results
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Petroleum

Since its first commercial exploitation in the 1850s, petroleum has become the major energy source of Canada and the industrial world.

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Platinum

Platinum (Pt) is the best known of the 6 greyish-white, metallic, platinum group elements, which also include palladium (Pd), iridium (Ir), rhodium (Rh), osmium (Os) and ruthenium (Ru). Platinum and palladium are more commonly used than the other elements in the group.

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Potash

Potash is an alkaline potassium compound most commonly used in fertilizers. It refers to a variety of salts produced through mining of minerals and chemical manufacturing. Canada is the world's largest potash producer and exporter.

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Prospecting

The first organized mineral exploration by Europeans in what is now Canada was led by Martin FROBISHER in his 3 expeditions to Baffin Island (1576, 1577 and 1578).

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Pump Drill

The pump drill was used by Aboriginal peoples to start fire and drill holes into materials such as wood, shell, bone and stone.

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Radium

Radium (Ra) is a rare radioactive metal found with naturally occurring URANIUM (about 1 part radium to 3 million parts uranium). It was discovered in 1898 by Pierre and Marie Curie and G.

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Salt

Sodium chloride (NaCl), or common salt, is ubiquitous in the environment. In its solid form, salt crystallizes as colourless cubes and is called rock salt. Salt is also known to geologists as halite. Its crystal structure was the first to be determined by X-rays.

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Sand and Gravel

Sand and gravel are unconsolidated, granular mineral materials produced by the natural disintegration of rock caused by weathering. The terms sand, gravel, clay and silt relate to grain size rather than composition. Sand is material passing through a number 4 (4.

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SNC-Lavalin

SNC-Lavalin is a global engineering and construction firm based in Montreal, Quebec. It works in several industries including oil and gas, mining, cybersecurity and nuclear power. It also builds public and private infrastructure around the world.

The company began in 1911 as an engineering consultant for power projects. In 1991, the original company, called SNC, merged with competitor Lavalin to become SNC-Lavalin. Today it employs some 50,000 people in more than 50 countries. In 2018, it registered $10.1 billion in revenue.

In Canada, the company has received contracts to build major transit projects in cities including Toronto, Montreal and Vancouver. Worldwide, SNC-Lavalin oversees resource-extraction and infrastructure projects in North America, the Asia-Pacific region, Europe and the Middle East.

Since 2011, allegations of fraud and corruption on the part of SNC-Lavalin and several of its executives have plagued the company with scandal.

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Spodumene

Spodumene is a lithium aluminum silicate (8.0% Li2O, 27.4% Al2O3, 64.6%SiO2) and is the world's most common commercially mined lithium ore mineral. Petalite, lepidolite and amblygonite are also mined in different parts of the world.

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Talc

Talc is a mineral composed of 31.7% magnesium oxide (MgO), 63.5% silicon dioxide (SiO2) and 4.8% water. It is formed by the alteration of dolomite or ultramafic IGNEOUS rocks. A formula for pure talc would look like this: 3 dolomite + 4 quartz + 1 water = 1 talc + 3 calcite + 3 CO2.

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Tantalum

Tantalum (Ta) is a grey, heavy, very hard metal with a high melting point (2996°C). When pure, it is ductile and can be easily fabricated. Tantalum has good rectifying properties (ie, converts alternating to direct current) and dielectric properties (ie, does not conduct direct current).

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Titanium

Titanium (Ti) is a metallic element estimated to form about 0.5% of the rocks of the Canadian SHIELD. Titanium minerals of commercial importance include the dioxides rutile and anatase, which are polymorphs of TiO2 and ilmenite (FeO.TiO2), a mineral that contains 52.7% TiO2.

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Tungsten

Tungsten (W), also called Wolfram, lapis ponderosus or Heavy Stone, is a silver-grey metallic element with the highest melting point of any metal (3410° C). Tungsten has a high density, high strength at elevated temperatures and extreme hardness.

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Tunnels

Unlike other mountainous countries such as Switzerland, and despite its size, Canada is not distinguished by well-known tunnels.