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31 specimens listed
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Sturmanite - large stacked crystals
stock #21.1-455
N Chwaning Mine, Kalahari Fields, Kuruman
Northern Cape Province, South Africa
7.4 x 4.7 x 3 CM (cabinet)
price: $1950


Very large and welL-defined cluster of Sturmanite crystals with a patina that in some light shows a iridescent color play. Not long ago Sturmanite was a very rare mineral and such huge crystals were unheard of. The great finds from South Africa changed that, but this size and level of quality is still very uncommon. Very impressive in person and now very hard to get.

Jouravskite
stock #21.1-377
N Chwaning Mine, Kalahari Fields, Kuruman
Northern Cape Province, South Africa
3.6 x 1.8 x 1.4 CM (small miniature/ large thumbnail (toenail))
price: $360


Bright yellow crystals of the rare mineral Jourvaskite on matrix. Although small, up to just 1.5mm, these crystals are huge for the specie. Vivid color and in excellent condition. The backside of the matrix is massive Manganite with a thin layer of Rhodochrosite underlying the Jouravskite, Quartz and what seems to be Xontolite. A choice and pretty specimen of a rare mineral; ex Terry Szenics collection.

Fluorite on Quartz
stock #AX-14-347
Orange River, Namakwa
Northern Cape Province, South Africa
3.6 x 1.4 x 1.3 CM (thumbnail)
price: $145
Late Summer 2021

A cute thumbnail with transparent, colorless Fluorites that have vivid purple cores or phantoms. These are all clustered on two faces of a clear Quartz crystal. The Quartz and the Fluorites are in fine condition. From a find about 4 years ago in the Orange River region (South Africa) this is just barely a thumbnail but will fit in a perky box.

Olmiite (Poldervaartite)
stock #8.AE-945
N Chwaning II Mine, Kalahari Manganese Filed
Northern Cape Province, South Africa
2.9 x 2.8x .8 CM (thumbnail)
price: $180
Late Summer 2021

A cute thumbnail of what was once a very rare mineral. This find was very important and large, the mineral was no long incredibly rare and it was also realized most of these were actually more accurately identified as another rare mineral, Olmiite. The South African discovery was and is the world's best and for all practical purposes the only locality for good specimens. This piece has a nice 1.8 CM crystal with the faces showing complex modification so it looks stepped and rounded. In fine condition, the color seems to vary depending on the light source from a brownish to orange hue. The matrix is a thin plate with a druse of clear Calcite crystals.

Rhodochrosite
stock #18.1-538
N Chwaning II Mine, Kalahari Manganese Filed
Northern Cape Province, South Africa
9 x 7.4 x 2.3 CM (cabinet)
price: $1850
new year 2021

An excellent cabinet sized Rhodochrosite that is of an unusual habit for N'Chwaning. Rhodo crystals fully cover the face of this large plate of Manganite matrix. From the display side just a sliver of the underlying black Manganite crystals can be seen. The hundreds of tiny sparkling Rhodochrosite crystals are sharp transparent scalenohedra most being free standing when seen under magnification. In excellent condition, there is no damage found by naked eye and under magnification only micro bruises on edges can be found with some difficulty. The sparkling luster and undulating surface make an attractive cabinet sized specimen from this famed mine. The color is not the intense red that some N'Chwaning Rhodos have but is a good red to pink-rose hue. This is also not a 5 figure specimen it is a very good value for a sizable, undamaged Rhodo from this famed, classic locale.

Fluorite - modified and aligned cubo-octahedral crystals
stock #AX-14-345
Orange River, Namakwa
Northern Cape Province, South Africa
2.9 x 2.2 x 1.8 CM (thumbnail)
price: $160
new year 2021

Dark purple Fluorite crystals that are translucent to transparent in strong lighting. A somewhat unusual locality better known for the red and orange Quartz crystals this is a nice example of this habit. The crystals are edge-modified cubes (cubo-octahedral) aligned with each other. There is no matrix except Flourite which has tiny stepped voids in the flat surfaces. The back and one side are incomplete, the front facing (display face) side is in fine undamaged condition.

Hematite - well-crystallized
stock #AX-14-355
N Chwaning Mine, Kalahari Fields, Kuruman
Northern Cape Province, South Africa
5.2 x 3.8 x 2.9 CM (cabinet)
price: $320


Stacks of sharp disk like crystals with bright luster from the famed N'Chwaning mine. From the finds over two decades ago this specimen is in outstanding condition, the only damage is on the small area of the base where it was removed. Some of the clusters are rosette-like but the aligned stacks are dominant and quite different from the well-known Alpine habits of Hematite. This can be displayed in most any orientation and is much more impressive in person. The edges of the crystals are quite sharp and well-defined.

Thaumasite
stock #19.1-422
N Chwaning II Mine, Kalahari Manganese Filed
Northern Cape Province, South Africa
3.1 x 2.6 x 2.1 CM (thumbnail)
price: $650


A sharp and very choice thumbnail of Thaumasite crystals on matrix in excellent condition. The crystals all have a pale color and are transparent with a slightly milky look at some angles. The largest prism is just under 2 CM long. No damage. The best of this uncommon specie was found a few years ago at NChwanning, and those are now quite scarce. This piece is from that find.