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- Pinalite abstract "Pinalite is a rare lead tungstate–chloride mineral with formula: Pb3WO5Cl2. Pinalite crystallizes in the orthorhombic crystal system. The orthorhombic system is described as having three crystallographic axes of unequal lengths, normally referred to as c (the longest axes), b (the second longest axes), and a (the smallest axes). These axes all have corresponding angles of 90 degrees. Pinalite belongs to the biaxial optical class, and is negative. The main difference between biaxial and axial crystals is that biaxial crystals have two optic axes.Pinalite's structure is significant in that it is one of a kind. It is therefore important in seeing how the structures in new lead oxyhalides (containing square pyramids incorporated into sheets) are arranged. Its structure contains an extra oxygen, which therefore has a very small amount of free space and consequently protrudes into neighboring layers. The oxygen then pushes aside the chlorine atoms, leaving almost no room for the lead to occupy. This is of interest to geologists for it is such a rare occurrence of structure seen only in pinalite and its barium analog. Therefore, it could be of use to structuralists to see how this mineral was formed. Experiments have been done, using lead oxyhalides, to see the reason and sequence of events in which this mineral is executed.".
- Pinalite wikiPageID "28854302".
- Pinalite wikiPageRevisionID "542825914".
- Pinalite 2v "Measured: 70° to 70.5°, calculated: 72°".
- Pinalite birefringence "δ = 0.015".
- Pinalite category "Tungstate mineral".
- Pinalite cleavage "None".
- Pinalite color "Bright to pale yellow, golden, orange".
- Pinalite diaphaneity "Transparent".
- Pinalite formula "Pb3WO5Cl2".
- Pinalite gravity "7.78".
- Pinalite habit "Acicular - occurs as needle-like crystals. Bladed - aggregates of thin lath-like crystals".
- Pinalite hasPhotoCollection Pinalite.
- Pinalite luminescence "Non-fluorescent.".
- Pinalite luster "Adamantine".
- Pinalite name "Pinalite".
- Pinalite opticalprop "Biaxial".
- Pinalite refractive "nα = 2.490 nβ = 2.495 nγ = 2.505".
- Pinalite strunz "3".
- Pinalite symmetry "Orthorhombic 2/m 2/m 2/m".
- Pinalite system Orthorhombic_crystal_system.
- Pinalite tenacity "Brittle".
- Pinalite twinning "Penetration twins on {010}".
- Pinalite unitCell "a = 11.07 Å, b = 13.08 Å, c = 5.62 Å; Z = 4".
- Pinalite subject Category:Halide_minerals.
- Pinalite subject Category:Lead_minerals.
- Pinalite subject Category:Orthorhombic_minerals.
- Pinalite subject Category:Tungstate_minerals.
- Pinalite type Abstraction100002137.
- Pinalite type HalideMinerals.
- Pinalite type LeadMinerals.
- Pinalite type Material114580897.
- Pinalite type Matter100020827.
- Pinalite type Mineral114662574.
- Pinalite type OrthorhombicMinerals.
- Pinalite type Part113809207.
- Pinalite type PhysicalEntity100001930.
- Pinalite type Relation100031921.
- Pinalite type Substance100019613.
- Pinalite type TungstateMinerals.
- Pinalite type ChemicalSubstance.
- Pinalite type Mineral.
- Pinalite type ChemicalObject.
- Pinalite type Thing.
- Pinalite comment "Pinalite is a rare lead tungstate–chloride mineral with formula: Pb3WO5Cl2. Pinalite crystallizes in the orthorhombic crystal system. The orthorhombic system is described as having three crystallographic axes of unequal lengths, normally referred to as c (the longest axes), b (the second longest axes), and a (the smallest axes). These axes all have corresponding angles of 90 degrees. Pinalite belongs to the biaxial optical class, and is negative.".
- Pinalite label "Pinalita".
- Pinalite label "Pinalite".
- Pinalite label "Pinalite".
- Pinalite sameAs Pinalita.
- Pinalite sameAs Pinalite.
- Pinalite sameAs m.0dd9hyc.
- Pinalite sameAs Q1056829.
- Pinalite sameAs Q1056829.
- Pinalite sameAs Pinalite.
- Pinalite wasDerivedFrom Pinalite?oldid=542825914.
- Pinalite isPrimaryTopicOf Pinalite.
- Pinalite name "Pinalite".