khinite

{{Infobox mineral |name=Khinite|boxwidth=|boxbgcolor=|image= Khinite.jpg|imagesize=|alt=|caption=Dark green Khinite crystals from the type locality (Bird Nest Drift, San Bernardino County, California, United States of America).|category=Tellurate minerals|formula=PbCu3TeO6(OH)2| IMAsymbol = Khn|molweight= |strunz=4.FD.30|dana=33.1.3.1 |system=Orthorhombic|class=|symmetry= |unit cell=Khinite-4O: a = 5.740 Å, b = 9.983 Å, c = 23.960 Å, Z = 8 Khinite-3T (parakhinite): a = 5.753 Å, c = 17.958 Å, Z = 3|color=Dark green – Bottle green|habit=Dipyramidal or curved crystals|twinning=|cleavage={001} fair|fracture= |tenacity=Brittle|mohs=3.5|luster=Vitreous|streak=Green|diaphaneity=Semitransparent|gravity = 6.5–7.0 (measured) 6.69 (calculated)|polish=|opticalprop=Biaxial (+) (khinite) Uniaxial (−) (parakhinite)|refractive=|birefringence=δ = 0.055|pleochroism=Yellow green – emerald green|2V=20o|dispersion=|extinction=|length fast/slow=|fluorescence=None|absorption=|melt=|fusibility=Fuses readily to a brown slag|diagnostic=|solubility=Soluble in cold acids|impurities=Ca|alteration=|other=|prop1=|prop1text=|references=}}

Khinite is a rare orthotellurate mineral with the formula Pb2+Cu2+3TeO6(OH)2. It crystallizes in the orthorhombic system and has a bottle-green colour. It is often found as dipyramidal, curved or corroded crystals no more than 0.15 mm in size. The tetragonal dimorph of khinite is called parakhinite.