Narsarsukite

Specimen ID: X12-42D

Mineral(s)
Narsarsukite : Na4(Ti,Fe)2[Si8O20](O,OH,F)2
Locality
As recorded:
Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada
Mindat locality:
Collections
Collected by:
Events

Photo added to mindat.org

Xl ~ 0.9 mm tall. Found Sept 2001. MOB coll. New photo June 2013 with more accurate colors. But it’s still a lousy photo and the colors are still not quite right. Tough subject. Nevertheless, this little xl is of interest because it was found in a very unexpected place, namely the Poudrette pegmatite (or possibly an “offshoot vein” thereof). There are two child photos (one in stereo) which show the habit – especially the terminal faces –more clearly. But the colors are even further off from reality. (The color should be “champagne” – somewhat like that in [http://www.mindat.org/photo-178979.html].) In any case, the termination is like that shown in diagram b. on p. 42 of the Lapis MSH special issue (July/August 2000). The prismatic habit is more like diagram f. The xl is associated with well formed, but very tiny, colorless gaidonnayite xls (not shown in the photos). There is also a second, smaller, narsarsukite xl of very simple habit (also not shown). Modified by CombineZP
Modris Baum - 10th August 2008

Photo added to mindat.org

Xl ~ ¾ mm wide. This is a stereo child photo. The photo shows the termination fairly well. But the color is too saturated. See parent photo for slightly more accurate color. Modified by CombineZP
Modris Baum - 5th June 2013

Photo added to mindat.org

Xl ~ ¾ mm wide. This is a child photo. This is a fudged version of the old parent photo. The color is still much too saturated (see parent) but the photo probably provides the best view of the termination.
Modris Baum - 5th June 2013
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