What was once a very nice sharp nodule of crystalline marcasite is now mostly sulphate minerals, possibly colourless gypsum, white fibres of halotrichite, and pink rozenite amongst others. Width of view 14mm. Stack of 35 images. Exact location not known but possibly Addiscot Beach at the top of the Angahook...
Yellow-green crust of one of the Obradovicite Group species with minor white gypsum. Ex Jim Daly. Width of view 9mm. Stack of 40 images. Click on the image below for a higher resolution version.
Bright green acicular kambaldaite crystals on duller green gaspéite. In the vugh on the right, the kambaldaite looks like it is overgrown by gypsum crystals. Width of view 6mm. Stack of 60 images. Click on the image below for a higher resolution version.
Yellow crystalline aggregates of jarosite with minor colourless gypsum crystals on a goethite matrix. Width of view 6mm. Stack of 40 images. Click on the image below for a higher resolution version.
Labelled as apatite but I think the long prismatic crystal is gypsum. The termination is wrong for apatite. There is greenish-brown chlorite and a brown siderite with a hollow core, left hand side of the vugh. Colourless gypsum crystals are also in the top right hand side of the vugh....
A colourless gypsum crystal with white hexagonal chabazite. Unsure what the hollowed out crystal is/was (bottom left of photo). The yellow needles are possibly iron-stained or replaced apatite. Width of view 6mm. Stack of 50 images. Click on the image below for a higher resolution version.
Yellow aggregates of hydrohonessite on green gaspéite, some of which is coated by gypsum. Ex Jo Price Collection. Width of view 6mm. Stack of 65 images. Click on the image below for a higher resolution version.
Tiny creamy-white radial sprays of bayleyite with calcite, gypsum, and unidentified copper and uranium species. Ex Al Wilkins. Width of view 6mm. Stack of 40 images. Click on the image below for a higher resolution version.
Better-known for its green gypsum, this locality also occasionally produces little surprises like this one. Halite cubes perched on the termination of a gypsum crystal. Ex Joan Lamond Micro Collection. Height of view 9.7mm. Stack of 70 images. Click on the image below for a higher resolution version.
Tiny sprays of post-mining gypsum crystals collected on the dumps. Look closely and you can some fishtail twins (eg: near the centre of the photo). Width of view 9mm. Stack of 55 images. Click on the image below for a higher resolution version.
Prismatic colourless crystals of gypsum. Ex Jo Price Collection. Width of view 11.5mm. Stack of 100 images. Click on the image below for a higher resolution version.
Interpenetrant gypsum crystals. Collected during roadworks. Largest crystal is 27mm long. Click on the image below for a higher resolution version.
Gypsum crystals on secondary copper mineral (chrysocolla?). Ex Lesley and Doug Ball Collection. Width of view 7.75mm. Stack of 45 images. Click on the image below for a higher resolution version.
A brownish-grey gypsum rose with a white UV reaction. Ex Margaret Brown Collection. Margaret purchased this specimen in 1983 in Broken Hill. Labelled simply Maryborough, Queensland. There is some doubt that it may not be from this region. James Melville advised that it is almost certainly from Newport Waterways (canal...
Colourless gypsum crystals with a white granular coating. Width of view 7.75mm. Stack of 85 images. Click on the image below for a higher resolution version.
A cluster of pinkish gypsum crystals.
Colourless to white tabular heulandite crystals with colourless sprays of gypsum. The heulandite crystals have dark blue cores giving the crystals a bluish hue. Width of view 3.5mm. Stack of 35 images. Click on the image below for a higher resolution version.
Dark green gillardite. Light green gaspeite. Colourless gypsum. Gillardite Type Locality. Ex Jo Price Collection. Width of view 5.75mm. Stack of 130 images. Click on the image below for a higher resolution version.
A small piece of gypsum collected at the same time as specimens of barite, calcite and fluorite. Width of view 11.5mm. Stack of 66 images. Click on the image below for a higher resolution version.
Colourless gypsum on green carrboydite with yellow to brown jarosite. Acquired by Joan Lamond in 1995 from Frank Doedens via Audrey Tuck. Width of view 19mm. Stack of 70 images. Click on the image below for a higher resolution version.
Acquired by Joan Lamond in 1995. Ex Museum Victoria.
Colourless gypsum over dark green to almost black atacamite. Yellowish green volborthite on specimen but not in photos. Ex John and Betty Weir.
Arborescent copper included in gypsum. Width of view 7.5mm. Stack of 150 images. Ex Charles Willett Collection.
Ex Joan Lamond Collection. Colourless gypsum crystals on green chrysocolla (labelled as pseudomalachite). Acquired by Joan in 1995 from John Toma while on a field trip to Lake Boga. Width 9mm. Stack of 30 images.
Ex Bernie Day specimen.
Munchener Micromounter, Helmut Braith
Yellow and fluorescent Natrozippeite, Al Wilkins
A water-clear fishtail gypsum crystal, 100mm long.
ex Bernie and Margaret Day Collection
Namuwite erroneously reported according to Mindat (Uwe Kolitsch, 2012). It is actually Unnamed (Gordaite-related Ca-Zn Sulphate Chloride Hydrate). ex Joan Lamond Collection
Joan Lamond Micro Collection 2006
Dan Weinrich (ex Don Belcher coll’n)
A fine doubly terminated gypsum crystal on a cluster of greenish white calcite scalahedrons. The 4.0 cm gypum crystal is splayed at one termination, this occured insitu and was collected in the 1990’s from the Porgera Gold Mine in the remote New Guinea Highlands. Size: H:5.7cm x W:4.3cm x D:2.6cm
Orange prismatic bellite, blue diaboleite, yellow schwartzembergite
Collected. Gypsum post-mining?
ex Joan Lamond Collection
Coloured green by copper chlorides
Originally thought to be barite, but no barium in analyses, so more likely gypsum.
Single gypsum blade with well-formed cuprite crystals on pink calcite. Ex Bernie and Margaret Day Collection.
A well-known fossil locality southeast of Melbourne. Collecting no longer allowed.
Platy yellow thorikosite with globular fluorite, and white gypsum from the Lavrion District, Attikí Prefecture, Greece. Exact locality unknown.
