Paratimroseite
Paratimroseite is an IMA-recognized mineral species in the oxides & hydroxide class, with the chemical formula Pb₂Cu₄(TeO₆)₂(H₂O)₂.
It crystallizes in the orthorhombic crystal system (space group P2_12_12_1).
Key properties: Mohs hardness 3; specific gravity 6.557; Very pale green streak; Dull (botryroids) to adamantine (crystals) luster; optically biaxial.
IMA symbol Ptim, IMA status: approved, named in 2009.
A secondary phase on fracture surfaces and in small vugs in quartz veins. Formed from the partial oxidation of primary sulfides (e.g., galena) and tellurides (e.g., hessite) during or following brecciation of the quartz veins.
It is found associated with Calcite, cerussite, housleyite, khinite-4O, markcooperite, timroseite.
A prefix, para, for its relationship to roseite which honors Timothy (Tim) P. Rose (b. 1960) geochemist at Lawrence Livermore National Laboratory. An avid mineral collector.