All Specimens with Gaudefroyite

28 specimens selected...

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CKTSR-2 - ETTRINGITE with Gaudefroyite - $ 3000 SOLD
N'Chwaning II Mine, Kalahari Manganese Fields, Northern Cape Province, South Africa
miniature, 5 x 5 x 2.25 cm
ex.  Charlie Key

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ETTRINGITE with Gaudefroyite - N'Chwaning II Mine, Kalahari Manganese Fields, Northern Cape Province, South Africa

A glowing yellow cluster of large, translucent, fat ettringite crystals on a bit of calcite matrix, and with contrasting black gaudefroyite upon the right side. The large crystal is fully terminated, though admittedly has a contact on the left side where it grew against another crystal no longer present. Still, the upright, freestanding crystal is extremely dramatic, is complete; and such crystals are rare. Usually they are flatlaying, whereas this is freestanding and vertical! The smaller crystal at the base is fully terminated and complete. Comes with custom lucite base. Comes with custom lucite display base.



CKTSR-35 - ETTRINGITE with HEMATITE and GAUDEFROYITE on CALCITE - SOLD
N'Chwaning II Mine, Kalahari Manganese Fields, Northern Cape Province, South Africa
cabinet, 10 x 8 x 4 cm
ex.  Charlie Key

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ETTRINGITE with HEMATITE and GAUDEFROYITE on CALCITE - N'Chwaning II Mine, Kalahari Manganese Fields, Northern Cape Province, South Africa
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ETTRINGITE with HEMATITE and GAUDEFROYITE on CALCITE - N'Chwaning II Mine, Kalahari Manganese Fields, Northern Cape Province, South Africa
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ETTRINGITE with HEMATITE and GAUDEFROYITE on CALCITE - N'Chwaning II Mine, Kalahari Manganese Fields, Northern Cape Province, South Africa

Incredible , gorgeous combination specimen featuring two large ettringite crystals of lemon yello whue, perched on sparkling and contrasting CRYSTALLIZED white calcite AND Gaudefroyite, further accented by a hematite crystal atop. The hematite is striking, and is 2.25 cm long and doubly terminated, pseudo-scalenohedral in form. The ettringite crystals are to 4.5 cm in length and shimmer with electric sheen on the surface, and have deep color that does not convey well in the photos. The overall contrast is striking. This is a very rare, large example of the species in super aesthetic form. It was found in the mid to late 1980s. Comes with custom lucite display base.



K217 - Gaudefroyite with Andradite Garnet - $ 475 SOLD
Wessels Mine, Kalahari Manganese Fields, South Africa
miniature, 3.3 x 3.1 x 2.2 cm

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Gaudefroyite with Andradite Garnet - Wessels Mine, Kalahari Manganese Fields, South Africa
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Gaudefroyite with Andradite Garnet - Wessels Mine, Kalahari Manganese Fields, South Africa

SHARP specimen with really lustrous crystals of this rare species, especially a 2-cm-long doubly-terminated crystal right in the front-left. That one is partially covered with the andradite garnet that makes up the matrix as well



K252 - Gaudefroyite on Barite - $ 775 SOLD
Wessels Mine, Kalahari Manganese Fields, South Africa
miniature, 5.5 x 3.6 x 3.5 cm

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Gaudefroyite on Barite - Wessels Mine, Kalahari Manganese Fields, South Africa
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Gaudefroyite on Barite - Wessels Mine, Kalahari Manganese Fields, South Africa
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Gaudefroyite on Barite - Wessels Mine, Kalahari Manganese Fields, South Africa

Talk about elegant display! This doubly-terminated barite floater hosts at either end a veritable bush of sharp, lustrous, jet-black crystals of the rare mineral Gaudefroyite to over 1 cm ; resulting in a very sculptural miniature of unique aesthetics. Uncommon in any quality, Gaudefroyite is especially rare on matrix . And , usually, you just don't se epieces with such contrast and vivid 3-dimensionality. This is a superb rarity at, i think, a cheap price.



K281 - Andradite garnet pseudo. Rhodochrosite with Gaudefroyite - $ 950
Wessels Mine, Kalahari Manganese Fields, South Africa
miniature, 5.6 x 2.1 x 1.3 cm

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Andradite garnet pseudo. Rhodochrosite with Gaudefroyite - Wessels Mine, Kalahari Manganese Fields, South Africa
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Andradite garnet pseudo. Rhodochrosite with Gaudefroyite - Wessels Mine, Kalahari Manganese Fields, South Africa

We had only two such specimens in the whole collection of thousands of pieces, of these strange cast pseudomorphs of minutely crystallized, sparkling, andradite garnet that have replaced twinned rhodochrosite crystals. I had only ever seen 2 others , before. These look just like the famous pseudo-triangular crystals one saw from Mt St Hilaire in Quebec, in the 1980s. But, made of garnet! This one is shaped like a shield, very tapered, with the interior completely lined with crystals of gaudefroyite that stick out to one side.



K289 - Gaudefroyite wtih Andradite garnet - $ 1250 SOLD
Wessels Mine, Kalahari Manganese Fields, South Africa
small cabinet, 6.8 x 5.7 x 3.2 cm

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Gaudefroyite wtih Andradite garnet - Wessels Mine, Kalahari Manganese Fields, South Africa
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Gaudefroyite wtih Andradite garnet - Wessels Mine, Kalahari Manganese Fields, South Africa
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Gaudefroyite wtih Andradite garnet - Wessels Mine, Kalahari Manganese Fields, South Africa

Superb, exceptionally lustrous Gaudefroyite crystals to 1.5 cm festoon this matrix of bright sparkling garnet. This is a very rich specimen at, I think, a very cheap price as the pics do not do it justice for its significance and aesthetics!



K290 - Andradite garnet pseudo. Rhodochrosite with Gaudefroyite - $ 1750 SOLD
Wessels Mine, Kalahari Manganese Fields, South Africa
miniature, 5.5 x 5.3 x 1.7 cm

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Andradite garnet pseudo. Rhodochrosite with Gaudefroyite - Wessels Mine, Kalahari Manganese Fields, South Africa
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Andradite garnet pseudo. Rhodochrosite with Gaudefroyite - Wessels Mine, Kalahari Manganese Fields, South Africa
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Andradite garnet pseudo. Rhodochrosite with Gaudefroyite - Wessels Mine, Kalahari Manganese Fields, South Africa

We had only two such specimens in the whole collection of thousands of pieces, of these strange cast pseudomorphs of minutely crystallized, sparkling, andradite garnet that have replaced twinned rhodochrosite crystals. I had only ever seen 2 others , before. These look just like the famous pseudo-triangular crystals one saw from Mt St Hilaire in Quebec, in the 1980s. But, made of garnet! This one is shaped like a 3-dimensional map where there are folds up and down to illustrate heights. It is very aesthetic, and more impressive in person! It is complete all around and made up of garnet on the front display, with the backside completely lined with crystals of gaudefroyite and a few minor ettringites. There is a coating on the backside, but the gaude's sticking out to the sides are, luckily, clean and lustrous, and serve to nicely accent the flanks of the rhodo crystals.



MD-118142 - Gaudefroyite, Baryte, Andradite - - Archived
Black Rock Mine, Black Rock, Kalahari manganese fields, Northern Cape Province, South Africa
large cabinet, 27 x 22 x 11 cm.

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Gaudefroyite, Baryte, Andradite - Black Rock Mine, Black Rock, Kalahari manganese fields, Northern Cape Province, South Africa
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Gaudefroyite, Baryte, Andradite - Black Rock Mine, Black Rock, Kalahari manganese fields, Northern Cape Province, South Africa

27 x 22 x 11 cm. Museum size and museum quality. Magnificent and rare large (read, HUGE) plate of the extremely rare manganese borate, Gaudefroyite. I have never seen such a large specimen with solid coverage as this. Quality crystals are rare, but this specimen is completely covered by lustrous tabular crystals that are black to deep rust in color. Among the thousand crystals, there are dozens upon dozens that range .5-1 cm in length, many in very attractive radial sprays. Incredible. Associated with the Gaudefroyite are a few sharp, zoned barytes and hundreds of lovely microcrystallized andradite garnets that occur in several groupings, adding both color and contrast to the piece. Amazing and aesthetic, this old piece is a classic.



MD-118713 - Gaudefroyite, Baryte, Andradite - - Archived
Black Rock Mine, Black Rock, Kalahari manganese fields, Northern Cape Province, South Africa
cabinet, 9.6 x 8 x 2.2 cm.

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Gaudefroyite, Baryte, Andradite - Black Rock Mine, Black Rock, Kalahari manganese fields, Northern Cape Province, South Africa
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Gaudefroyite, Baryte, Andradite - Black Rock Mine, Black Rock, Kalahari manganese fields, Northern Cape Province, South Africa

9.6 x 8 x 2.2 cm. The Gaudefroyites are sharp, lustrous, and the needles reach up to about .8 cm in length. The Barytes, though partially cleaved, add brightness and contrast, while the ribbon of Andradites seal the deal.



MD-120658 - Gaudefroyite, Andradite - - Archived
Wessels Mine (Wessel's Mine), Hotazel, Kalahari manganese fields, Northern Cape Province, South Africa
miniature, 3.3 x 3.1 x 2.2 cm

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Gaudefroyite, Andradite - Wessels Mine (Wessel's Mine), Hotazel, Kalahari manganese fields, Northern Cape Province, South Africa

SHARP specimen with really lustrous crystals of this rare species, especially a 2-cm-long doubly-terminated crystal right in the front-left. That one is partially covered with the andradite garnet that makes up the matrix as well 3.3 x 3.1 x 2.2 cm



MD-120807 - Gaudefroyite, Andradite, Baryte - - Archived
Black Rock Mine, Black Rock, Kalahari manganese fields, Northern Cape Province, South Africa
small cabinet, 8.6 x 5.7 x 3 cm.

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Gaudefroyite, Andradite, Baryte - Black Rock Mine, Black Rock, Kalahari manganese fields, Northern Cape Province, South Africa
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Gaudefroyite, Andradite, Baryte - Black Rock Mine, Black Rock, Kalahari manganese fields, Northern Cape Province, South Africa

8.6 x 5.7 x 3 cm. Choice example of the famous and highly desired Gaudefroyite/Andradite/Baryte combinations from Black Rock Mine. The Gaudefroyites are superbly lustrous, and the largest of the crystals is a full 1.2 cm long. The deep-red Andradites provide a beautiful contrast, as do the delicate Barytes, which are along the top and back.



MD-122287 - Gaudefroyite, Baryte - - Archived
Wessels Mine (Wessel's Mine), Hotazel, Kalahari manganese fields, Northern Cape Province, South Africa
small cabinet, 5.5 x 3.6 x 3.5 cm

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Gaudefroyite, Baryte - Wessels Mine (Wessel's Mine), Hotazel, Kalahari manganese fields, Northern Cape Province, South Africa

Talk about elegant display! This doubly-terminated barite floater hosts at either end a veritable bush of sharp, lustrous, jet-black crystals of the rare mineral Gaudefroyite to over 1 cm ; resulting in a very sculptural miniature of unique aesthetics. Uncommon in any quality, Gaudefroyite is especially rare on matrix . And , usually, you just don't se epieces with such contrast and vivid 3-dimensionality. 5.5 x 3.6 x 3.5 cm



This Photo was Mindat.org Photo of the Day - 25th Mar 2008



MD-122387 - Andradite, Rhodochrosite, Gaudefroyite - - Archived
Wessels Mine (Wessel's Mine), Hotazel, Kalahari manganese fields, Northern Cape Province, South Africa
small cabinet, 5.6 x 2.1 x 1.3 cm

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Andradite, Rhodochrosite, Gaudefroyite - Wessels Mine (Wessel's Mine), Hotazel, Kalahari manganese fields, Northern Cape Province, South Africa

We had only two such specimens in the whole collection of thousands of pieces, of these strange cast pseudomorphs of minutely crystallized, sparkling, andradite garnet that have replaced twinned rhodochrosite crystals. I had only ever seen 2 others , before. These look just like the famous pseudo-triangular crystals one saw from Mt St Hilaire in Quebec, in the 1980s. But, made of garnet! This one is shaped like a shield, very tapered, with the interior completely lined with crystals of gaudefroyite that stick out to one side. 5.6 x 2.1 x 1.3 cm



MD-122388 - Andradite, Rhodochrosite, Gaudefroyite - - Archived
Wessels Mine (Wessel's Mine), Hotazel, Kalahari manganese fields, Northern Cape Province, South Africa
small cabinet, 5.5 x 5.3 x 1.7 cm

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Andradite, Rhodochrosite, Gaudefroyite - Wessels Mine (Wessel's Mine), Hotazel, Kalahari manganese fields, Northern Cape Province, South Africa

We had only two such specimens in the whole collection of thousands of pieces, of these strange cast pseudomorphs of minutely crystallized, sparkling, andradite garnet that have replaced twinned rhodochrosite crystals. I had only ever seen 2 others , before. These look just like the famous pseudo-triangular crystals one saw from Mt St Hilaire in Quebec, in the 1980s. But, made of garnet! This one is shaped like a 3-dimensional map where there are folds up and down to illustrate heights. It is very aesthetic, and more impressive in person! It is complete all around and made up of garnet on the front display, with the backside completely lined with crystals of gaudefroyite and a few minor ettringites. There is a coating on the backside, but the gaude's sticking out to the sides are, luckily, clean and lustrous, and serve to nicely accent the flanks of the rhodo crystals. 5.5 x 5.3 x 1.7 cm



MD-122396 - Gaudefroyite, Andradite - - Archived
Wessels Mine (Wessel's Mine), Hotazel, Kalahari manganese fields, Northern Cape Province, South Africa
thumbnail, 1.5 cm

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Gaudefroyite, Andradite - Wessels Mine (Wessel's Mine), Hotazel, Kalahari manganese fields, Northern Cape Province, South Africa

Superb, exceptionally lustrous Gaudefroyite crystals to 1.5 cm festoon this matrix of bright sparkling garnet. This is a very rich specimen at, I think, a very cheap price as the pics do not do it justice for its significance and aesthetics! 6.8 x 5.7 x 3.2 cm



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