webmineral.com/data/Rontgenite-(Ce).shtmlRontgenite-(Ce) is Radioactive as defined in 49 CFR 173.403. Greater than 70 Bq / gram. Greater than 70 Bq / gram. Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 10 cm box) 639.20 ±159.80 grams of pure Rontgenite-(Ce) .
www.saint-hilaire.ca/fr/rontgen.htmlMont Saint Hilaire is located 40 kilometers to the East of Montréal, in Rouville County, Canada. Mont Saint- Hilaire has become a classic collecting site and one of the richest current sources of rare mineral species.
www.weinrichmineralsinc.com/products/rontgenite-ce--1861601.phpRontgenite-(Ce) specimen number: 1861601. location: Granite Gap, Hidalgo Co., New Mexico, USA. description: Yellowish brown masses quite rich throughout the front side of a 3.5 x 3.5 x 1.0 cm matrix. Previous note says that this is been confirmed by Sid Williams. Shipping weight: 0.04 pounds. Ex Wolfgang E Henkel collection. Size: 3.5 x 3.5 x 1.0 cm (miniature)
www.dakotamatrix.com/products/13106/rontgenite-ceRontgenite-(Ce) - Beige micro crystals in vugs. Ex - Excalibur. . This and many more mineral specimens are available for sale at Dakota Matrix Minerals.
galleries.com/ParisiteParisite is closely related to three other distinct minerals; synchysite, bastnasite and rontgenite-(Ce) The four are all Bastnasite Group minerals of similar formulas and occurrence. In Fact the four are often intergrown and a single crystal of any of these minerals probably contains at least one of the other minerals and possibly all four.
www.galleries.com/minerals/fablocal/greenlan.htmThe mineral regions of Greenland are unknown to the majority of mineral collectors. However there are good reasons for collectors to get acquainted with them. This frigid region has produced nearly three hundred different mineral species and is the type locality for a number of obscure and exotic minerals.