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This specimen features large and sharp cuboctahedral galena crystals on needle quartz. The etched areas and the bevels on the corners add very interesting crystal textures. The luster is just amazing on all sides! Great condition and contrast, ex Oliver Konczer collection.

 

Very showy quartz crystals in uncommon combination and style. The crystals are covered by a final layer of truly white quartz and sitting on actinolite. All the crystal tips are in pristine condition. Ex Oliver Konczer collection.

 

Lovely spray of stibnite crystals on a small calcite matrix. Very showy all the way around! Ex Oliver Konczer collection.

 

WOW! What a stunning babingtonite specimen! A perfect, doubly terminated crystal is perched on green prehnite crystals, fully undamaged and in freestanding, upright position. Several groups of clear quartz crystals attached in the center and on the sides add another pleasing contrast. The specimen is a floater and in perfect condition all around. Ex Oliver Konczer collection.

 

What a huge and superb ilvaite crystal cluster! The specimen is in perfect condition and shape on all sides. Little quartzes and even a small purple fluorite are attached on the sides. The termination faces show wonderful stepped growth patterns. No damage.

 

A perfect quatz stalactite serves as a perfect stand for multiple doubly terminated apophyllite and heulandite crystals. Equally fine from any side. Fantastic aesthetics and great condition! Ex Oliver Konczer collection.

 

Large sphalerite crystals resting on a matrix of sparkling quartz crystals. The specimen is a complete floater and well crystalized on all sides, a small galena sits atop. The sphalerite crystals show quite complex crystal structures, numerous steps reveal a lovely hoppered texture. Overall a pristine and very showy specimen. Ex Oliver Konczer collection.

 

A clear and undamaged cube measuring 3.4 cm on edge perched on calcite crystals and iron oxides. The specimen is a complete floater and well crystalized on either side. The edges and corners of the fluorite feature lovely rhombohedral and octahedral bevels. A great piece for the advanced fluorite collector! Ex Oliver Konczer collection.

 

Wonderful sprays of lovely bright and vibrant green, primary malachites serve as a matrix for chrysocolla ps. barite crystals and clear yellow calcites. The specimen is a perfect floater and complete all around. The rear side is actually another very nice display side! Ex Oliver Konczer collection.

 

This is a large and very 3-dimensional aggregate of kidney ore from a classic English locality. The botryoidal crystal cluster in the center is truly very well exposed, much better than the picture shows it, and serves aa a wonderful focal point. No damages on the entire center region of the piece. The luster is exceptionally glossy, and the colour is a lovely reddish brown. Total weight: 4.3 kg. Ex Oliver Konczer collection #558.

 

A perfect floater of doubly terminated clinozoisite crystals! The piece comes from an old find, very few specimens have ever reached this level of clarity and bright, open colour. Another stunning piece from Oliver Konczer's collection, #17. No damage.

 

A very rare doubly terminated lorenzenite crystal nicely sitting on mother rock. The crystal measures 3.5 cm tip to tip. Ex Oliver Konczer collection.