Natural Resources

Other Mineral Types

Following is a collection of mineral specimens that can be found in Newfoundland and Labrador, but are not of economic importance. These were photographed as a project of the Mining Week Committee. They depict the quality of collectible mineral specimens available in Newfoundland. All photographs by James Butler.

Analcite

This mineral, also known as analcime, usually occurs as trapezohedral crystals and is usually white or colourless. It occurs in veins or cavities and is generally associated with alkali-rich basic igneous rocks.

Analcite

The specimen shown above was collected by Peter Elias from the Baker Cove- New Harbour area of Placentia Bay. It is part of the Papezik Collection (svp02489) at Memorial University of Newfoundland.

Beryl

Beryl is a beryllium aluminum silicate, usually found in association with granite pegmatites. It is the only commercial source of beryllium. The gemstone quality of beryl is emerald. It is mined from granite pegmatites in the USA, Brazil, India and Australia.

Beryl

The crystal in the photograph was collected from a road cut north of Indian Bay, NF. It is the property of W. Lawson Dickson, a geologist with the Geological Survey.

Cummingtonite

Cummingtonite is an iron-magnesium silicate that usually occurs in aggregates of fibrous crystals, often radiating. It occurs in calcium-poor, iron-rich metamorphic rocks of medium grade. It is often associated with ore deposits.

Cummingtonite

This specimen of cummingtonite was found in association with the iron deposits of Wabush, Labrador. It was collected by Heather Harnum in 1980 and is part of the Papezik Collection at Memorial University of Newfoundland.

Goethite

Goethite is a hydrated iron oxide (FeO(OH)) that is generally associated with other iron mineralization. It is a secondary source for iron.

Goethite

Goethite may have a reputation as a dull and "dirty" mineral but a number of specimens show radiating crystal structure and make a fine addition to your collection.

The specimen in the photograph was collected from the iron ore mines of the Iron Ore Company of Canada, Labrador City. This sample is owned by Jamie Meyer.

Kyanite

Kyanite is an aluminum silicate (Al2SiO5) that has a characteristically patchy blue colour; it may also be green, white or grey. It is usually found in its crystalline form. It occurs in aluminum-rich rocks and occurs in schists, gneisses, quartz veins and pegmatites. It is important in the manufacture of refractories.

Kyanite

Kyanite is found on the west coast of Newfoundland, in the Port aux Basques area.

The specimen shown is the property of A. Howse, Industrial Minerals Geologist with the Geological Survey.

Lazulite

Lazulite is an azure-blue to violet-blue phosphate mineral (Mg,Fe+3)Al2(PO4)2(OH)2 that is isomorphous with scorzalite and occurs in small masses or as crystals. Not to be confused with lazurite, which is a silicate mineral.

Lazulite

Lazulite is found in outcrop on the road to Monkstown, Burin Peninsula of Newfoundland, about 10 kilometres from the intersection of the Monkstown road and the Burin Peninsula highway.

The specimen shown is the property of Sean O'Brien, Project Geologist with the Geological Survey.

Pyrite Nodules

Also known as Fool's Gold, pyrite (FeS2) is a brass-yellow metallic that has a cubic structure and commonly striated surfaces. It is sometimes mistaken for gold.

Pyrite Nodules

Pyrite is by far the most common sulphide mineral. It occurs as cubes, massive or, more rarely as concretions. Nodules, such as these, can be found on the Port au Port Peninsula.

The specimen shown is the property of Loretta Crisby-Whittle, Geologist with the Geological Survey.

Quartz

Quartz is stable over practically the whole range of geological conditions, and because silica (SiO2) is the most abundant oxide in the Earth's crust, it is a very common mineral. Its uses are extremely varied, ranging from the construction industry (as building stone and aggregate) to use in computer circuitry; from use as a flux in the metallurgical industry to the manufacture of glass. It is also widely used as an ornamental and semi-precious stone.

Quartz

In Newfoundland quartz, in the form of quartzite, was quarried for a number of years in the Argentia area for use as a flux in the processing of phosphorus ore at Long Harbour. Several high-grade deposits of silica have been located on the island and at least one quality deposit near Labrador City. Work is continuing on bringing some of these deposits into production.

The quartz crystal shown in the photograph is an extremely well preserved specimen. It is the property of Dan Bragg.

Sulphur

Sulphur (S) in its native or elemental form. Sulphur is used in fertilizer and chemicals.

Native sulphur in silicified felsic volcanic rocks that are 490 million years old. It is rare for sulphur to be preserved in its elemental form in such old rocks.

Sulphur

The sample in the photograph is from the Red Indian Lake area of central Newfoundland. It is the property of David Evans, a geologist with the Geological Survey.

Tremolite

Amphibole group minerals of the tremolite-actinolite series, are calcium (iron, magnesium) silicate that usually occurs in aggregates of long prismatic crystals, common in low- to medium-grade metamorphic rocks.

Tremolite

Tremolite is generally white, becoming green with increased iron content, and characteristic of metamorphosed dolomitic limestones.

This sample is a pale green and believed to be from the Ramah Bay area of Labrador. It is from the Newfoundland Museum collection.

 
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