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Gemstones *(79)  

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Geology and History of Coal in Nova Scotia - Provincial government information circular.
Goonvean Ltd - Extract and supply china clays, kaolins, and aggregates. Based in Cornwall, United Kingdom with facilities for worldwide distribution .
Gypsum and Anhydrite in Nova Scotia - Provincial government information circular on the Nova Scotia occurrence, mining history, and uses of these minerals.
Maine Geology - Economic Geology Photo Gallery - Photos of sand and gravel pits and stone quarrying.
Peat Moss in Nova Scotia - Peat is the partially decomposed remains of plants and animals which have accumulated in oxygen poor freshwater environments over the past 11 000-13 000 years. Peat is mined for horticultural purposes, and is also used in distillation, yeast cultivation, as an energy source, and in manufacture of ferrosilicons.
Salt Caverns - About subsurface salt deposits and their uses for solution mining of salt, hydrocarbon storage, and waste disposal. U.S. emphasis.
Scottish Agates - A series of images of Scottish agates from the Midland Valley of Scotland, UK with additional material from the Cheviot Hills.
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