The past three collecting seasons in the San Juan Mountains have produced interesting mineral finds, mainly microcrystals.The crystals occur in hydrothermal veins, contact metamorphic deposits, bedded replacement deposits, and gossan deposits.The Silver Link mine, 3.5 mi south of Ouray, Colorado, is situated on sheer cliffs 1,000 ft above the Uncompahgre River and was worked in the 1880s for silver and copper.The quartz-tetrahedrite-bornite-chalcopyrite vein has produced superbly crystallized specimens of anatase, brookite, bornite, chalcopyrite, tetrahedrite, and clear quartz crystals with bornite and tetrahedrite inclusions.Rutile and zircon are also present but are too small to be photographed.Secondary minerals collected so far include brochantite, azurite, and malachite.
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