Clearcreekite
A pale greenish-yellow mercury(I) carbonate hydrate, polymorphous with peterbaylissite.
Intro adapted from Wikipedia (CC BY-SA).
Clearcreekite is an IMA-recognized mineral species in the carbonate class, with the chemical formula Hg¹⁺₃(CO₃)(OH)·2H₂O.
It crystallizes in the monoclinic crystal system (space group P2_1/c).
Key properties: specific gravity 6.96; Pale greenish yellow streak; Vitreous luster.
IMA symbol Cck, IMA status: approved, named in 1999.
Very rare, probably formed as an alteration product of cinnabar.
It is found associated with Edoylerite, cinnabar.
The name refers to the Clear Creek mine, California, USA.
Index entry. This entry combines official IMA/RRUFF species data with published physical-property data and a Wikipedia introduction — a full written entry hasn’t been published yet.
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