A bund consists of: an impervious bund wall or embankment surrounding the facility or tanks. an impervious floor within the bunded area. any joints in the floor or the wall, or between the floor and the wall.
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The ore company leases out claims to a few turquoise mines only infrequently. Calendaria turquoise is a good quality stone of high blue color with an intermittent black or brown, non-webbed matrix. The high-grade Candelaria is a translucent dark blue with a redish brown spiderweb matrix.lock Turquoise is manufactured in blocks and is made to look like turquoise. It may be all plastic polymer or it may have crushed or powdered turquoise or other stone mixed with resin or polymer. Block Turquoise sometimes has swirls or blobs of dark dye added to simulate the look of matrix.