Haywoodite
Haywoodite is an IMA-recognized mineral species in the sulfate class, with the chemical formula [Pb(H₂O)₁₀][Zn₁₂(OH)₂₀(H₂O)(SO₄)₃].
It crystallizes in the triclinic crystal system (space group P-1). It is a member of the Ktenasite structural group.
IMA symbol Hyw, 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.
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