Rémondite-(Ce) is a very rare mineral at MSH, having been found almost exclusively in the famous Poudrette pegmatite. Judging from the near absence of Mindat photos for rémondite-(Ce) from the few other known localities, likely it is even rarer at these localities.

Rémondite-(Ce) at MSH comes in several colors and habits. The first photo (FOV 4.1 x 5.4 mm) shows a 4 mm example of the “salmon” colored variety. These crystals exhibit the characteristic “splintery” habit often seen in this variety. You will need 15X to see the “splinters”.

The second photo (FOV 4.1 x 5.3) shows a few “puff ball” aggregates of franconite (<= 0.6 mm) on exfoliating natrolite. (The exfoliation is likely gonnardite.) There is a bit more franconite on the specimen, but it is just a small accessory. You will need 15X to view it.

There are a couple of other “tufts” of rémondite on the specimen, but they are not significant.

The rémondite-(Ce) shows very strong REE absorption (due to traces of Nd).

Note: A generally reliable test for franconite vs hochelagaite is the yellow response of franconite under SW UV. In this case, there was some response, but, because of the small size, I was unable to determine if the response was from the “franconite” or something else. Hence this is  “franconite group”.

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