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- Lawsonite abstract "Lawsonite is a hydrous calcium aluminium sorosilicate mineral with formula CaAl2Si2O7(OH)2·H2O. Lawsonite crystallizes in the orthorhombic system in prismatic, often tabular crystals. Crystal twinning is common. It forms transparent to translucent colorless, white, and bluish to pinkish grey glassy to greasy crystals. Refractive indices are nα=1.665, nβ=1.672 - 1.676, and nγ=1.684 - 1.686. It is typically almost colorless in thin section, but some lawsonite is pleochroic from colorless to pale yellow to pale blue, depending on orientation. The mineral has a Mohs hardness of 8 and a specific gravity of 3.09. It has perfect cleavage in two directions and a brittle fracture.Lawsonite is a metamorphic mineral typical of the blueschist facies. It also occurs as a secondary mineral in altered gabbro and diorite. Associate minerals include epidote, titanite, glaucophane, garnet and quartz. It is an uncommon constituent of eclogite.It was first described in 1895 for occurrences in the Tiburon peninsula, Marin County, California. It was named for geologist Andrew Lawson (1861–1952) of the University of California by two of Lawson's graduate students, Charles Palache and Frederick Leslie Ransome.".
- Lawsonite thumbnail Lawsonite-169898.jpg?width=300.
- Lawsonite wikiPageID "4033532".
- Lawsonite wikiPageRevisionID "593676596".
- Lawsonite 2v "Measured: 84° to 85°".
- Lawsonite birefringence "δ = 0.019 - 0.021".
- Lawsonite caption "Sample from the type locality in California with two elongated, lustrous and translucent crystals of pastel pink, lawsonite in mica schist".
- Lawsonite category Silicate_minerals.
- Lawsonite cleavage "Perfect on {100} and {010}, imperfect on {101}".
- Lawsonite color "Colorless, white, pale blue to grayish blue".
- Lawsonite diaphaneity "Translucent".
- Lawsonite dispersion "Strong, r > v".
- Lawsonite formula "CaAl2Si2O72·H2O".
- Lawsonite gravity "= 3.05 - 3.12".
- Lawsonite habit "Commonly prismatic, tabular; also granular, massive".
- Lawsonite hasPhotoCollection Lawsonite.
- Lawsonite luster "Vitreous, greasy".
- Lawsonite mohs "7.5".
- Lawsonite name "Lawsonite".
- Lawsonite opticalprop "Biaxial".
- Lawsonite pleochroism "Weak; X = blue, pale brownish yellow; Y = deep bluish green, yellowish green; Z = colorless, yellowish".
- Lawsonite refractive "nα = 1.665 nβ = 1.672 - 1.676 nγ = 1.684 - 1.686".
- Lawsonite streak "White".
- Lawsonite strunz "9".
- Lawsonite symmetry Hermann%E2%80%93Mauguin_notation.
- Lawsonite symmetry "Orthorhombic dipyramidal".
- Lawsonite symmetry "Space group: Ccmm".
- Lawsonite system Orthorhombic_crystal_system.
- Lawsonite tenacity "Brittle".
- Lawsonite twinning "Common on {101} lamellar".
- Lawsonite unitCell "a = 5.847 Å, b = 8.79 Å, c = 13.128 Å; Z = 4".
- Lawsonite subject Category:Aluminium_minerals.
- Lawsonite subject Category:Calcium_minerals.
- Lawsonite subject Category:Sorosilicates.
- Lawsonite type Abstraction100002137.
- Lawsonite type AluminiumMinerals.
- Lawsonite type CalciumMinerals.
- Lawsonite type Material114580897.
- Lawsonite type Matter100020827.
- Lawsonite type Mineral114662574.
- Lawsonite type Part113809207.
- Lawsonite type PhysicalEntity100001930.
- Lawsonite type Relation100031921.
- Lawsonite type Substance100019613.
- Lawsonite type ChemicalSubstance.
- Lawsonite type Mineral.
- Lawsonite type ChemicalObject.
- Lawsonite type Thing.
- Lawsonite comment "Lawsonite is a hydrous calcium aluminium sorosilicate mineral with formula CaAl2Si2O7(OH)2·H2O. Lawsonite crystallizes in the orthorhombic system in prismatic, often tabular crystals. Crystal twinning is common. It forms transparent to translucent colorless, white, and bluish to pinkish grey glassy to greasy crystals. Refractive indices are nα=1.665, nβ=1.672 - 1.676, and nγ=1.684 - 1.686.".
- Lawsonite label "Lawsoniet".
- Lawsonite label "Lawsonit".
- Lawsonite label "Lawsonit".
- Lawsonite label "Lawsonita".
- Lawsonite label "Lawsonite".
- Lawsonite label "Lawsonite".
- Lawsonite label "Lawsonite".
- Lawsonite sameAs Lawsonit.
- Lawsonite sameAs Lawsonita.
- Lawsonite sameAs Lawsonita.
- Lawsonite sameAs Lawsonite.
- Lawsonite sameAs Lawsonite.
- Lawsonite sameAs Lawsoniet.
- Lawsonite sameAs Lawsonit.
- Lawsonite sameAs m.0bdkc4.
- Lawsonite sameAs Q424354.
- Lawsonite sameAs Q424354.
- Lawsonite sameAs Lawsonite.
- Lawsonite wasDerivedFrom Lawsonite?oldid=593676596.
- Lawsonite depiction Lawsonite-169898.jpg.
- Lawsonite isPrimaryTopicOf Lawsonite.
- Lawsonite name "Lawsonite".
