In the southern zone, mineralisation is identified in lensed quartz veins as disseminations and veinlets of malachite and haematite.
www.proactiveinvestors.com.au Specimens tend to lighten in color over time due to weathering of the specimen surface into malachite.
en.wikipedia.org 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 It may be associated with cerussite, plattnerite, azurite, malachite, pyromorphite, mimetite, beudantite, duftite, crocoite, gibbsite, allophane and limonite.
en.wikipedia.org