It occurs as tufts of very delicate acicular crystals of a fine blue color, and is associated with other copper minerals of secondary origin, such as cuprite and malachite.
en.wikipedia.org Secondary copper minerals include chrysocolla, malachite, azurite and cuprite with a supergene zone to 90 metres vertical depth containing chalcocite and lesser covellite.
www.proactiveinvestors.com.au It is found in association with tremolite, quartz, epidote, monazite, copper, cuprite, atacamite, buttgenbachite, malachite, paratacamite, and anthonyite.
en.wikipedia.org It occurs in association with cuprite, brochantite, linarite, caledonite, malachite, chrysocolla and its polymorphs.
en.wikipedia.org These ores typically contain cuprite (red copper oxide) and/or copper carbonate in a matrix of red or gray sandstone.
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