White acicular-fibrous crystals of aragonite that fluoresce bright white, then fade to a greenish glow, with malachite on barite. Width of view 6mm. Stack of 85 images. Click on the image below for a higher resolution version.
Twinned chalcopyrite crystal on pink bladed barite. Malachite sprays also present. Width of view 6mm. Stack of 66 images. Click on the image below for a higher resolution version.
White prismatic calcite and bladed barite in one vugh, dark green malachite balls and bladed barite in another. The calcite fluoresces strongly bluish-white. Width of view 6mm. Stack of 50/80 images. Click on the images below for a higher resolution version.
A malachite “pipe” on bladed barite. Width of view 6mm. Stack of 100 images. Click on the image below for a higher resolution version.
Bladed and prismatic white cerussite crystals in gossanous cavities, some coated in iron oxide/hydroxide, in a barite matrix. Elsewhere covellite and malachite present. Width of view 3mm. Stack of 100 specimens. Click on the image below for a higher resolution version.
Blue bowties of azurite with a malachite (or possibly rosasite) ball on pink to tan to white bladed barite. Native copper crystals towards the top left of the image. Width of view 6mm. Stack of 100 images. Click on the image below for a higher resolution version.
Cubic galena frozen in a barite matrix. Some alteration evident in some of the galena crystals (possibly to anglesite). One vugh in the barite contains some malachite (not in photo). Width of view 6mm. Stack of 40 images. Click on the image below for a higher resolution version.
Goethite replaced earlier azurite and/or malachite(?) with an overgrowth of malachite. Stack of 80 images. Click on the image below for a higher resolution version.
A bit of layering here. The bottom layer is quartz crystals, and they are completely covered in goethite. Next is white dickite. On top of the dickite are colourless-grey fluorite cubes (not fluorescent). These in turn are covered by fibrous malachite and then dark green atacamite. Width of view 5.75mm....
This is the first time I have seen this colour on a Broken Hill specimen! Spectacular under shortwave ultraviolet light. The smithsonite glows yellow under longwave, pink under medium wave and violet red under shortwave. Sphalerite is visible orange under shortwave and brighter under medium wave. It also appears to...
Green prismatic malachite crystals on iron-stained/coated dolomite rhombs. Width of view 11.5mm. Stack of 150 images. Click on the image below for a higher resolution version.
Superb blue sprays of connellite in slag.
Blue spray with green malachite and brochantite, and unidentified pale green material in massive cuprite with quartz. Ex Brian Beyer. Width of view 5.75mm. Stack of 50 images. Click on the image below for a higher resolution version.
Superb blue sprays of connellite with prismatic green brochantite and a couple of green malachite hemispheres, in slag. Width of view 5.75mm. Stack of 30 images. Acquired from Greg Vort-Ronald at the 2022 Palmer Show, South Australia. Click on the image below for a higher resolution version.
Green chrysocolla pseudomorphing malachite. Width of view 11.5mm. Stack of 15 images. Click on the image below for a higher resolution version.
Pale blue chrysocolla with green malachite. Width of view 11.5mm. Stack of 30 images. Click on the image below for a higher resolution version.
Pale blue chrysocolla with sprays of green malachite and crystals of brown cerussite. Width of view 11.5mm. Stack of 29 images. Click on the image below for a higher resolution version.
Brownish crystal of chlorargyrite on malachite. Also present but not in photo, azurite crystals. Ex Ian Graham. Width of view 5.75mm. Stack of 70 images. Click on the image below for a higher resolution version.
Quite blocky green malachite crystals. Acquired by me at the 2022 Gemkana from the Waverley Gem Club stall. Ex John Wren Collection. Acquired by John in 1986 for $4 from the Waverley Gem Club stall. Most of his collection was purchased back by the Waverley Club after he had passed....
Chalcocite forming both a tapering prismatic crystal with a pseudohexagonal crystal at its base, with tufts of malachite on a vugh lining of crystalline prehnite. Ex Margaret Brown. Width of view 11.5mm. Stack of 70 images. Click on the image below for a higher resolution version.
Chrysocolla as blue patches and as green coatings and/or replacement of malachite. Green unaltered malachite also present. Some malachite altered to goethite, and goethite also present as the coating of vughs possibly coating or replacing earlier malachite. Width of view 11.5mm. Stack of 80 images. Click on the image below...
Grey cerussite crystals on azurite. Ex Graham Lee. Width of view 19mm. Stack of 85 images. Click on the image below for a higher resolution version.
Prismatic brownish cerussite crystals, some twinned on green malachite. Width of view 19mm. Stack of 73 images. Click on the image below for a higher resolution version.
A neat reticulated cerussite specimen coated in tiny pyromorphite crystals. Sandwiched between the two is a bit of malachite. Specimen measures 48x45x22mm.
Brownish bladed cerussite with green needles of malachite and blue bladed azurite. Width of view 9mm. Stack of 37 images. Click on the image below for a higher resolution version.
A phantom(!) reticulated cerussite with malachite. Ex Margaret Brown Collection. Width of view 5mm. Stack of 60 images. Click on the image below for a higher resolution version.
Reticulated cerussite groups on hemimorphite with malachite. Ex Margaret Brown Collection. Ex Gerry Morvell. Width of view 9.5mm. Stack of 45 images. Click on the image below for a higher resolution version.
Malachite after azurite and orange-yellow wulfenite crystals and tiny olive green fornacite crystals on a goethite matrix. Width of specimen 43mm. Stack of 182 images. Depth of view about 25mm. Click on the image below for a higher resolution version.
Bluish thin crystals of brochantite under a malachite ball, Inkerman Mine, Mount Isa Area, Queensland. Width of view 3.5mm. Stack of 45 images. Ex Bernie Day Collection. Click on the image below for a higher resolution version.
Acquired by Joan Lamond in 1986 from Mary Wilde of the Mordialloc Club.
Not all mineral specimens are perfect. This one has suffered a little, perhaps when mined or perhaps when collected. One of the azurite crystals (the one on the right) has a couple of breaks. One of these shows the perfect cleavage property of azurite (in one direction anyway). The second...
This specimen shows a couple of interesting properties of cerussite. The first is the unfortunate way that crystals can easily break (right hand end of main white cerussite crystal). The second is its habit of often producing partial or full cyclic twins (right hand side of specimen). Associated with lustrous...
Azurite with malachite partially pseudomorphing one crystal. Width of view 2.5mm. Stack of 60 images. Click on the image below for a higher resolution version.
A sharp azurite crystal casting a blue hue on the malachite beneath. Width of view 3.5mm. Stack of 50 images. Click on the image below for a higher resolution version.
Lustrous azurite crystals reflecting nearby malachite. Width of view 5mm. Stack of 80 images. Click on the image below for a higher resolution version.
Vintage micromount. Ex Bob Rothenberg collection, previously Walter Bagley and John Francis Calvert (Calvert died in 1897). Width of view 3.5mm. Stack of 50 images. Click on the image below for a higher resolution version.
Ex Museum Victoria, acquired by Joan Lamond in 1999. Width of view 2.5mm.
Sharp blue-green micro crystals of hoganite on cerussite and malachite. Colour is more green than shown in the photos. Width of view 3.5mm. Exact source of specimen is not known. The original occurrence was only a few specimens, and probably not this rich. It could be “manufactured” but could also...
White smithsonite, green malachite.
Azurite roses. Width 11mm. Stack of 130 images. Ex John Sobolewski. Ex Matt Gibbs.
Small flakes of gold on vein quartz and on galena. Also present in one cavity – malachite and cerussite. Possible acanthite on silver in another. Width 9mm. Stack of 40 images. Ex Jo Price Collection.
Collected August 2010 by Dave Rosewall and Paul Melville. Video best viewed full screen.
Superb azurite crystal altering from within to malachite.
Blocky malachite crystals on cuprite and quartz.
Drusy quartz over azurite. Width of view 2mm. Stack of 52 images. Ex Bernie Day specimen. Click on the image below for a higher resolution version.
Unusual azurite with the appearance of white edges. Width of view 2mm. Stack of 53 images. Ex Bernie Day Collection. Click on the image below for a higher resolution version.
Ex Bernie Day specimen.
Ex Ron Wallace, ex Graham Lee. Monochrome photo.
Ex Bernie Day specimen.
Possibly redgillite rather than malachite.
ebay bayminerals_2012. Bay Minerals. Philip Grounds, Morecambe, Lancashire, England
ebay bayminerals_2012. Bay Minerals. Philip Grounds, Morecambe, Lancashire, England
ex Patrick C. Murphy, ex Darren Lucas
So-called velvet malachite”. Purchased at Keystone
From Greg Dainty: This piece was collected, and labeled, by Norman Robinson, from an old exploration trench. Its hard to figure out exactly whats going on here, there is what appears to be chrysocolla replacing malachite, some malachite, some non replacement chrysocolla, as for the yellowish white mineral on the...
ex Bernie and Margaret Day Collection
