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Detailed Description A super iron-cross twin with incredibly well-defined interpenetrating pentagonal dodecahedra – just enough offset to show this habit perfectly. Sharp, great lustre, in excellent condition. A beauty! NB about the photographs: All of the specimens from this find are black-to-dark brown in colour. The lustre varies somewhat. In order to capture the crystal […]
Detailed Description A sharp, lustrous iron-cross twin with bright striations highlighting the “crosses”. In excellent condition, a few tiny hollows in the goethite veneer. A great one! NB about the photographs: All of the specimens from this find are black-to-dark brown in colour. The lustre varies somewhat. In order to capture the crystal forms in […]
Detailed Description A great twin exhibiting well-defined interpenetrating dodecahedra – very three-dimensional with good relief. Very fine striations highlight the 90-degree crossing edges. In excellent conditions, a few tiny hollows in the goethite veneer. A beautiful iron-cross pyrite twin! NB about the photographs: All of the specimens from this find are black-to-dark brown in colour. […]
Detailed Description A gorgeous iron-cross with brilliant striations highlighting the “crosses”. In excellent condition. Sharp, with great balanced development, a textbook pyrite iron-cross twin! NB about the photographs: All of the specimens from this find are black-to-dark brown in colour. The lustre varies somewhat. In order to capture the crystal forms in the photos, reflectors […]
Detailed Description A very sharp, highly lustrous twin – this specimen has very three dimensional relief, with clearly interpenetrating dodecahedra and also striations highlighting the crosses. In excellent condition – one chip on a lower back edge behind the specimen and a few tiny hollows in the goethite veneer along edges. This is a spectacular […]
Detailed Description A fantastic twin – this one is almost so evenly-developed as to appear like an idealized crystal model (particularly on the face I would display forward). The “crosses” are emphasized by prominent striations all-around. In excellent condition – a wonderful pyrite iron-cross twin! NB about the photographs: All of the specimens from this […]
Detailed Description A sharp, lustrous iron-cross twin with prominent “crosses”, highlighted by bright striations. In excellent condition overall, one chip (can be displayed so this is not in view, as the crystal is complete all around) and some tiny hollows in the goethite veneer. A really bright one – looks great under the lights. NB […]
Detailed Description A beautiful twin – the “crosses” on are punctuated by very prominent striations. In excellent condition, one chipped area underneath (not visible as displayed). On that underside, there is a small untwinned sidecar crystal. But clearly what makes this piece are the amazing crosses! NB about the photographs: All of the specimens from […]
Detailed Description A sharp, lustrous iron-cross twin. Evenly twinned with prominent crosses, highlighted by striations. In excellent condition – a sweet one! NB about the photographs: All of the specimens from this find are black-to-dark brown in colour. The lustre varies somewhat. In order to capture the crystal forms in the photos, reflectors have been […]
Detailed Description This is a spectacular iron-cross twin – one of the best in the lot. It has contact area on a back face (not seen as displayed), or it would be at the top price in the lot. Sits perfectly for display as photographed. This crystal has it all – it is very three-dimensional […]
Detailed Description The “cross” on the face I would display forward is just super – it’s three-dimensional, with deep relief, and has striations emphasizing the pattern. (Sits perfectly for display this way, as shown in the first photo.) In excellent condition, with tiny hollows in the goethite coating. A striking pyrite iron-cross twin. NB about […]
Detailed Description An dramatic iron-cross twin, as the interpenetrating crystals stand out from one another with good relief. In excellent condition, very slight rounding at the edges of the goethite veneer in places. A great pyrite iron-cross twin! NB about the photographs: All of the specimens from this find are black-to-dark brown in colour. The […]