All Specimens with Genthelvite

20 specimens selected...
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den07-08 - Genthelvite - $ 950
Zagi Mountain, North-West Frontier Province, Pakistan
miniature, 3.5 x 2.7 x 1.8 cm

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This miniature features the sharpest matrix genthelvite crystal I have yet seen from here, a beautiful, translucent root-beer-colored crystal measuring 1.3 cm across and showing exquisite form.

DENV08-25 - Genthelvite (large XL!) - $ 1800
Zagi Mountain, Mulla Ghori, Khyber Agency, Federally Administered Tribal Areas (FATA), Pakistan
miniature, 3.7 x 3.3 x 2.5 cm

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A huge crystal for the species, not the largest known but among the better large crystals for aesthetics and form, I think you can say. When strongly backlit, this is translucent. In a case, it shows remarkable, sharp symmetry that is immediately recognizable if you do a doubletake and realize you are not looking at a thumbnail here.

MCW40 - Genthelvite with Mn-Neptunite - $ 1200 SOLD
Mont St. Hilaire, Quebec, Canada
thumbnail, 2 x 1.3 x 1.2 cm

Sorry, we have no images of this specimen at present.
A remarkable specimen of unusually large Genthelvite crystals to over 1 cm, with rich translucent grass-green color! Unusually attractive display-quality example of this often-earthy and ugly mineral species, PLUS it is of significant size and quality - what better combo is there?!

MD-197433 - Genthelvite - - Archived
Zagi Mountain (Zegi Mountain), Mulla Ghori, Khyber Agency, Federally Administered Tribal Areas (FATA), Pakistan
miniature, 3.7 x 3.3 x 2.5 cm.

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3.7 x 3.3 x 2.5 cm. A huge crystal for the species, not the largest known but among the better large crystals for aesthetics and form. When strongly backlit, this is translucent.

MD-20246 - Genthelvite - - Archived
Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada
thumbnail, 2 x 1.3 x 1.2 cm

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A remarkable specimen of unusually large Genthelvite crystals to over 1 cm, with rich translucent grass-green color! Unusually attractive display-quality example of this often-earthy and ugly mineral species, PLUS it is of significant size and quality - what better combo is there?! 2 x 1.3 x 1.2 cm

MD-274944 - Genthelvite - - Archived
Zagi Mountain (Zegi Mountain), Mulla Ghori, Khyber Agency, Federally Administered Tribal Areas (FATA), Pakistan
miniature, 3.5 x 2.7 x 1.8 cm.

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3.5 x 2.7 x 1.8 cm. This miniature features the sharpest matrix genthelvite crystal I have yet seen from here, a beautiful, translucent root-beer-colored crystal measuring 1.3 cm across and showing exquisite form.

MD-34719 - Genthelvite, Albite - - Archived
Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada
thumbnail, 2.1 x 1.7 x 1.5 cm

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A superb example of this very rare species, from a single pocket collected about 2 years ago that features unusually large, unusually translucent, unusually pretty pastel green crystals. This specimen has one fairly clean repair to the backside of the main crystal, as shown in the lower photo. 2.1 x 1.7 x 1.5 cm

MD-34720 - Genthelvite, Kupletskite-(Cs) - - Archived
Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada
thumbnail, 1.4 x 0.9 x 0.9 cm

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A superb example of this very rare species, from a single pocket collected about 2 years ago that features unusually large, unusually translucent, unusually pretty pastel green crystals. 1.4 x 0.9 x 0.9 cm

MD-34721 - Genthelvite - - Archived
Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada
thumbnail, 1.4 x 0.9 x 0.6 cm

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A complete floater, sharp as heck, and just a superb example of this very rare species, from a single pocket collected about 2 years ago that features unusually large, unusually translucent, unusually pretty pastel green crystals. 1.4 x 0.9 x 0.6 cm

MD-34722 - Genthelvite - - Archived
Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville RCM, Montérégie, Québec, Canada
thumbnail, 2 x 1.5 x 1.1 cm

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A complete floater, with multiple sharp translucent pastel green crystals to over 1 cm in size; and just a superb example of this very rare species from a single pocket collected about 2 years ago, that features unusually large, unusually translucent, unusually pretty crystals. 2 x 1.5 x 1.1 cm

MD-51268 - Genthelvite - - Archived
Zagi Mountain (Zegi Mountain), Mulla Ghori, Khyber Agency, Federally Administered Tribal Areas (FATA), Pakistan
thumbnail, 2.1 x 1.7 x 0.8 cm

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This is an extremely rare, very large crystal of the REE species Genthelvite . It is so rare that I am aware of only a handful from any location, notably MSH in Quebec, and of only a few other crystals from this locale which is now famous for other REE mineral species such as bastnaesite and parisite. It is the only one of quality, that I have seen for sale recently, in fact. Rightmost photo shows it backlit. 2.1 x 1.7 x 0.8 cm

MD-64399 - Genthelvite - - Archived
Zagi Mountain (Zegi Mountain), Mulla Ghori, Khyber Agency, Federally Administered Tribal Areas (FATA), Pakistan
thumbnail, 1.0 cm

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This locality is better known for the world’s finest bastnaesite crystals. However, this rare, zinc, beryllium, silicate, sulfide, in matrix is a pretty special specimen, too. A single, lustrous, brown, crystal of genthelvite, 1.0 cm across, is nestled in a vug. I have seen only a few from the locality. On eimagines many are sold in error as zircon or some other more common species. 6.9 x 4.4 x 3.2 cm

MD-64400 - Genthelvite - - Archived
Zagi Mountain (Zegi Mountain), Mulla Ghori, Khyber Agency, Federally Administered Tribal Areas (FATA), Pakistan
thumbnail, 1.0 cm

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Perched in a small vug in the matrix are two lustrous, brown crystals, to 1.0 cm across, of the rare zinc, beryllium, silicate, sulfide, genthelvite. The unusual chemistry that helped create bastnaesite has also created this rare species. 4.6 x 4.3 x 4.2 cm

SF32 - Genthelvite on Albite - $ 250 SOLD
Mt. St. Hilaire, Quebec, Canada
thumbnail, 2.1 x 1.7 x 1.5 cm

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A superb example of this very rare species, from a single pocket collected about 2 years ago that features unusually large, unusually translucent, unusually pretty pastel green crystals. This specimen has one fairly clean repair to the backside of the main crystal, as shown in the lower photo. Hence, it is priced at $250 instead of $1000. Still, it is relatively a bargain and both displays well and hosts a major crystal for the species.

SF33 - Genthelvite with Cesium-Kupletskite - $ 195 SOLD
Mt. St. Hilaire, Quebec, Canada
thumbnail, 1.4 x 0.9 x 0.9 cm

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A superb example of this very rare species, from a single pocket collected about 2 years ago that features unusually large, unusually translucent, unusually pretty pastel green crystals.

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