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Carbonate

Synchysite-(Nd)

CaNd(CO₃)₂F
Hardness1
Crystal systemOrthorhombic
ClassCarbonate
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Synchysite-(Nd)

Synchysite-(Nd) is an IMA-recognized mineral species in the carbonate class, with the chemical formula CaNd(CO₃)₂F.

It crystallizes in the orthorhombic crystal system.

Key properties: Mohs hardness 1; specific gravity 4.14; White streak; Dull luster; optically biaxial.

IMA symbol Syn-Nd, IMA status: approved, named in 1978.

An authigenic minerals in cement in sandstone (Holičky deposit, Czech Republic); filling cavities in the base of a bauxite deposit in contact with limestone (Grebnik deposit, Yugoslavia).

It is found associated with Florencite-(La), sphalerite, manganoan siderite, pyrite, kaolinite, quartz (Holičky deposit, Czech Republic).

The name refers to its relation to synchysite-(Ce) and 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 S minerals or help write this entry.