Detailed Description This pseudomorph of goethite after marcasite is a beautiful starburst. The crystals are quite sharp, with some surface  crystals are the darkest brown, virtually black.  The cluster is complete all around and in excellent condition – a couple of tiny nicks, you really have to look for them. A top-calibre White Desert thumbnail. […]

Detailed Description A great pseudomorph of goethite after marcasite – it looks like it’s made of dark chocolate. The crystals are still sharp, but they have been polished by the blowing sands of the White Desert, and so they have the appearance of a glossy, ever-so-slightly melted, chocolate. The cluster is complete all around and […]

Detailed Description A beautiful pseudomorph of goethite after marcasite, with lustrous deep brown blades radiating out from a central point. The crystals are quite sharp, with some surface detail and also slight polish from the blowing sands of the White Desert. The cluster is complete all around and in excellent condition. A super one! Please […]

Detailed Description A super pseudomorph of goethite after marcasite – this one looks like it’s made of the darkest chocolate. The crystals are still well-defined, but they have been polished by the blowing sands of the White Desert, and so they have the appearance of a glossy, ever-so-slightly melted, chocolate. So cool. The cluster is […]

Detailed Description A super pseudomorph of goethite after marcasite – these are extremely sharp crystals with intricate crystal surface detail. The dark brown crystals have nice lustre. The overall habit is the radiating ball of spear-like aggregates – it is truncated underneath, so it stands perfectly for display as photographed. In excellent condition – a […]

Detailed Description This is a superb pseudomorph of goethite after marcasite – a ball of well-defined crystals all around. The crystals have good lustre, and are a deep brown that is almost black. An uncommon habit, with flat blades, many of which are sandwiched or stacked together. In excellent condition with a couple tiny rubs […]

Detailed Description A super pseudomorph of goethite after marcasite, with very sharp crystals all around – lustrous and deep brown, almost black. Of the many habits of these White Desert pseudomorphs, my friend Tracy Kimmel used to call this the “mace head” habit. In excellent condition with a couple of small chips – a really […]

Detailed Description This pseudomorph of goethite after marcasite exhibits a habit with dominant points in three directions from more than one angle, almost pseudo-octahedral, as in the photo. The crystals are sharp crystals all around – lustrous and deep brown.  In excellent condition – a really great one! Please Note: the colour representation in the […]

Detailed Description A super pseudomorph of goethite after marcasite, with very sharp crystals all around – lustrous and almost black. Of the many habits of these White Desert pseudomorphs, my friend Tracy Kimmel used to call this the “mace head” habit. In excellent condition and so perfectly proportioned – a top one of these. Please […]

Detailed Description This is pseudomorph of goethite after marcasite, has a very unusual shape, with well-defined crystals all around – highly lustrous and deep chocolate brown. I love the overall oblong shape. In excellent condition – a super piece! Please Note: the colour representation in the still photograph has been carefully calibrated and adjusted to […]

Detailed Description This is a great pseudomorph of goethite after marcasite, with sharp crystals all around – highly lustrous and deep brown that is almost black. This is a relatively uncommon habit, with radiating balls of very well-separated blades. In excellent condition – a super piece! Please Note: the colour representation in the still photograph […]

Detailed Description This is a super pseudomorph of goethite after marcasite, with well-defined crystals all around – lustrous and a deep chocolate brown. Of the many habits of these White Desert pseudomorphs, my friend Tracy Kimmel used to call this the “mace head” habit. In excellent condition and so perfectly proportioned – really a great […]