A single lustrous red scalenohedral rhodochrosite crystal. Height of view 14.5mm. Click on the image below for a higher resolution version.
Oxidised twinned crystals from slate. Width of view 7mm. Stack of 60 images.
Quartz grains from a gold mine battery. Quite fine crushed quartz. The old-timers would have extracted almost all of the gold. Width of view 7mm. Stack of 60 images.
Crystalline particles of metallic miharaite. Ex Chet Lemanski Collection. Type Locality. Width of view 7mm. Stack of 60 images. Below: Miharaite, Mihara mine, Higashi-Mihara, Ibara City, Okayama Prefecture, Japan. Width of view 7mm.
Tin-white aggregate of native antimony. Width of view 6mm. Stack of 40 images. Click on the image below for a higher resolution version.
Spongy bright yellow gold with stibnite in quartz. Collected before the open pit operation. Width of view 6mm. Stack of 50 images.
A yellow jeanbandyite crystal in arsenopyrite with a bleb of iridescent chalcopyrite. Ex Bernie Day Collection. Ex Chris Jewson, collected 10/1993. Width of view 6mm. Stack of 50 images. Click on the image below for a higher resolution version.
Olive green prismatic crystals with typical triangular faces on the terminations. Width of view 6mm. Stack of 40 images.
Greenish tinted crystals of marcasite with fluorescent sphalerite. Width of view 14mm. Stack of 50 images. Click on the image below for a higher resolution version.
Green cubes of pharmacosiderite. Width of view 3mm. Stack of 50 images. Click on the image below for a higher resolution version.
A marcasite nodule that is unaltered (compare specimen 0189). Width of view 14mm. Stack of 45 images. Click on the image below for a higher resolution version.
A crystalline nodule of marcasite. Ex Barry Schubert. Width of view 14mm. Stack of 85 images. Click on the image below for a higher resolution version.
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...
