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Silicate

Madeiraite

Na₂Ca₂Fe₂Zr₂(Si₂O₇)₂O₂F₂
Crystal systemMonoclinic
ClassSilicate
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Madeiraite specimen

Madeiraite Field of view: 0.4 mm Locality: Terra do Baptista gabbro outcrop (TL), Porto da Cruz, Machico, Madeira Island, Madeira, Portugal ( locality at mindat.org ) — Photo: Henk Smeets – tomeikminerals.com · CC BY 4.0

Madeiraite

Madeiraite is an IMA-recognized mineral species in the silicate class, with the chemical formula Na₂Ca₂Fe₂Zr₂(Si₂O₇)₂O₂F₂.

It crystallizes in the monoclinic crystal system (space group P2_1/a). It is a member of the Wöhlerite structural group.

IMA symbol Mde, IMA status: approved, named in 2022.

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 M minerals or help write this entry.