Macedonite
General
CategoryMineral
Formula
(repeating unit)
PbTiO3
IMA symbolMce[1]
Strunz classification4.CC.35
Dana classification4.3.6.1
Crystal systemTetragonal
Space groupP4/nmm
Unit cella = 3.90 Å, c = 4.18 Å Z=1 V=63.58 Å3
Structure
Identification
Colourblack
Tenacityvery brittle
Mohs scale hardness6
Lustervitreous
Diaphaneityopaque
Specific gravity7.82
Optical propertiesUniaxial

Macedonite is a mineral named by Radusinović and Markov in 1971. It has the elemental formula PbTiO3 and exhibits tetragonal crystal system. The type locality is near Crni Kamen, Selecka Planina, Prilep Municipality, North Macedonia. It can be confused with perovskite. It is found in an amazonite-rich area.[2]

Fame

Lead titanate, which is the premier piezoelectric material, had not been previously reported in the wild.[2]

References

  1. Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine. 85 (3): 291–320. Bibcode:2021MinM...85..291W. doi:10.1180/mgm.2021.43. S2CID 235729616.
  2. 1 2 Radusinović, D. and C. Markov (1971) Macedonite - lead titanate: a new mineral". American Mineralogist: 56: 387-394


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