pinalite

{{Infobox mineral | name = Pinalite | category = Tungstate mineral | boxwidth = | boxbgcolor = | image = | imagesize = | caption = | formula = Pb3WO5Cl2 | IMAsymbol = Pnl | molweight = | strunz = 3.DC.55 | system = Orthorhombic | class = Dypyramidal (mmm) H-M symbol: (2/m 2/m 2/m) | symmetry = Orthorhombic Space group: Amam | unit cell = a = 11.07 Å, b = 13.08 Å, c = 5.62 Å; Z = 4 | color = Bright to pale yellow, golden, orange | habit = Acicular - occurs as needle-like crystals. Bladed - aggregates of thin lath-like crystals (e.g. kyanite) | twinning = Penetration twins on {010} | cleavage = None | fracture = | tenacity = Brittle | mohs hardness = | luster = Adamantine | refractive = nα = 2.490 nβ = 2.495 nγ = 2.505 | opticalprop = Biaxial (+) | birefringence =δ = 0.015 | 2V = Measured: 70° to 70.5°, calculated: 72° | pleochroism = | streak = | gravity = 7.78 (calculated) | density = | melt = | fusibility = | diagnostic = | solubility = | diaphaneity = Transparent | fluorescence = Non-fluorescent | references = }}

Pinalite is a rare lead tungstate–chloride mineral with formula: Pb3WO5Cl2.