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Carbonate

Rémondite-(Ce)

Na₃(Ce,Ca,Na)₃(CO₃)₅
Hardness3–3.5
Crystal systemOrthorhombic
ClassCarbonate
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Rémondite-(Ce) specimen

Rémondite-(Ce) Locality: Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry; Carrière Mont Saint-Hilaire), Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada FOV 4.4 x 4.1 mm. MOB coll. One of the characteristic habits for remondite-(ce) at MSH. Very strong REE absorbtion lines. — Photo: Modris Baum · Public domain

Rémondite-(Ce)

Rémondite-(Ce) is an IMA-recognized mineral species in the carbonate class, with the chemical formula Na₃(Ce,Ca,Na)₃(CO₃)₅.

It crystallizes in the orthorhombic crystal system. It is a member of the Burbankite structural group.

Key properties: Mohs hardness 3–3.5; specific gravity 3.43; Vitreous luster; optically biaxial.

IMA symbol Rém-Ce, IMA status: approved, named in 1987.

Found in a nepheline syenite (Ebounja, Cameroon); in association with an intrusive alkalic gabbro-syenite complex (Mont Saint-Hilaire, Canada).

It is found associated with Burbankite, aegirine, calcite (Ebounja, Cameroon).

The mineral was named to honor Dr. Guy Rémond (1935–), physicist, Bureau de Recherches Géologiques et Minières, Orléans, France, for his work on the physics of minerals.

Index entry. This entry combines official IMA/RRUFF species data with published physical-property data — a full written entry hasn’t been published yet. Browse more R minerals or help write this entry.