Macedonite
{{one source|date=March 2021}}
{{Infobox mineral
| name = Macedonite
| boxwidth =
| boxbgcolor =
| image =
| imagesize =
| alt =
| caption =
| struct image =
| struct caption =
| struct imagesize =
| struct2 image =
| struct2 caption =
| struct2 imagesize=
| SMILES = [Pb+2].[O-][Ti](=O)[O-]
| Jmol =
| category =
| formula = PbTiO3
| molweight =
| strunz = 4.CC.35
| dana = 4.3.6.1
| system = Tetragonal
| class =
| symmetry = P4/nmm
| unit cell = a = 3.90 Å, c = 4.18 Å Z=1 V=63.58 Å3
| colour = black
| habit =
| twinning =
| cleavage =
| fracture =
| tenacity = very brittle
| toughness =
| mohs = 6
| luster = vitreous
| streak =
| diaphaneity = opaque
| gravity = 7.82
| density =
| polish =
| opticalprop = Uniaxial
| refractive =
| birefringence =
| pleochroism =
| 2V =
| dispersion =
| extinction =
| length fast/slow =
| fluorescence =
| absorption =
| melt =
| Curie temp =
| fusibility =
| diagnostic =
| solubility =
| impurities =
| alteration =
| other =
| prop1 =
| prop1text =
| references =
| var1 =
| var1text =
| var2 =
| var2text =
| var3 =
| var3text =
| var4 =
| var4text =
| var5 =
| var5text =
| var6 =
| var6text =
}}
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, Macedonia. It can be confused with perovskite. It is found in an amazonite-rich area.Radusinović, D. and C. Markov (1971) ''[https://pubs.geoscienceworld.org/msa/ammin/article-abstract/56/3-4_Part_1/387/540836/Macedonite-Lead-Titanate-A-New-Mineral?redirectedFrom=fulltext Macedonite - lead titanate: a new mineral]". American Mineralogist: 56: 387-394
Fame
Lead titanate, which is the premier piezoelectric material, had not been previously reported in the wild.