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Carbonate

Lukechangite-(Ce)

Na₃Ce₂(CO₃)₄F
Hardness4.5
Crystal systemHexagonal
ClassCarbonate
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Lukechangite-(Ce)

Lukechangite-(Ce) is an IMA-recognized mineral species in the carbonate class, with the chemical formula Na₃Ce₂(CO₃)₄F.

It crystallizes in the hexagonal crystal system (space group P6_3/mmc).

Key properties: Mohs hardness 4.5; specific gravity 3.3; White streak; Vitreous to somewhat pearly on {0001} luster; optically uniaxial.

IMA symbol Luk-Ce, IMA status: approved, named in 1996.

A very rare mineral found in a pegmatite dike in association with an intrusive alkalic gabbro-syenite complex.

It is found associated with Microcline, analcime, sodalite, aegirine, sérandite, eudialyte, catapleiite, fluorite, petersenite-(Ce), siderite, astrophyllite, albite.

The mineral was named to honor Professor Luke L.Y. Chang (1934–), University of Maryland, College Park, Maryland, USA, for his studies of carbonate 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 L minerals or help write this entry.