Bastnaesite-Ce on Calcite - image 1
Bastnaesite-Ce on Calcite - image 2
Bastnaesite-Ce on Calcite - image 3
Bastnaesite-Ce on Calcite - image 4

Bastnaesite-Ce on Calcite

Unknown Owner
Help improve this recordNo owner is registered for this specimen yet. If it's yours or you know more about it, you can add the owner, provenance, publications and other details.
Sign in to contribute
A large crystal for the locality, 2 cm across, sits on calcite matrix on this significant specimen from Trimouns. Two crystals in paralle growth reach almost 2 mm thickness each, and merge together to create one larger composite crystal that is very impressive. Shown here are both backlit and frontal lighting shots. A note about coloration: In fluorescent lights, these crystals look more amber-brown than in halogen lights, where they take on a more orange-red hue. When backlit moderately, as shown, they take on a nice red glowing color. All photos here are taken under sunlight balanced halogen, with moderate backlighting. Joe Budd photos.These were found at the classic old French locality for rare earth species, in the late 1970s, and have until now been hidden away by the collector. For sheer quality and beauty, many collectors have long considered the gemmy rare earth crystals from here to be among the best of their species. The productive specimen zone at the locality is, I am told reliably, simply mined out and gone now.

Product details

SpeciesCalcite
SizeThumbnail
Dimensions2.0 x 1.6 x 0.6 cm
Added on10/23/2024

Known provenance

DateCollectorAcquisition price
08/2024Unknown OwnerNot disclosed
The ArkenstoneNot disclosed

Learn more

Calcite
Mineral guide
Learn about Calcite
diverse shapes, colors, and optical quirks; widely available yet scarce elite pieces from Elmwood and Charcas drive collecting value and display.
Regional guide
Calcite from Trimouns Talc Mine
Sign in to contribute