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Carbonate

Calcioancylite-(Nd)

Nd₂.₈Ca₁.₂(CO₃)₄(OH)₃·H₂O
Hardness4–4.5
Crystal systemMonoclinic
ClassCarbonate
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Calcioancylite-(Nd)

Calcioancylite-(Nd) is an IMA-recognized mineral species in the carbonate class, with the chemical formula Nd₂.₈Ca₁.₂(CO₃)₄(OH)₃·H₂O.

It crystallizes in the monoclinic crystal system (space group Pm). It is a member of the Ancylite structural group.

Key properties: Mohs hardness 4–4.5; specific gravity 4.02; White streak; Vitreous luster; optically biaxial.

IMA symbol Canc-Nd, IMA status: approved, named in 1989.

Coating miarolitic cavities in granite.

It is found associated with Orthoclase, quartz, albite.

The name refers to calcioancylite with dominant neodymium.

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 C minerals or help write this entry.