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- Pyrophyllite abstract "Pyrophyllite is a phyllosilicate mineral composed of aluminium silicate hydroxide: Al2Si4O10(OH)2. It occurs in two more or less distinct varieties, namely, as crystalline folia and as compact masses; distinct crystals are not known.The folia have a pronounced pearly lustre, owing to the presence of a perfect cleavage parallel to their surfaces: they are flexible but not elastic, and are usually arranged radially in fan-like or spherical groups. This variety, when heated before the blowpipe, exfoliates and swells up to many times its original volume, hence the name pyrophyllite, from the Greek pyros (fire) and phyllos (a leaf), given by R. Hermann in 1829. The color of both varieties is white, pale green, greyish or yellowish; they are very soft (hardness of 1 to 1.5) and are greasy to the touch. The specific gravity is 2.65 - 2.85. The two varieties are thus very similar to talc.".
- Pyrophyllite thumbnail Pyrophyllite-118706.jpg?width=300.
- Pyrophyllite wikiPageExternalLink pyrophyl.htm.
- Pyrophyllite wikiPageExternalLink talc.
- Pyrophyllite wikiPageExternalLink www.trinityresources.ca.
- Pyrophyllite wikiPageID "594024".
- Pyrophyllite wikiPageRevisionID "582716366".
- Pyrophyllite 2v "53".
- Pyrophyllite birefringence "δ =0.0450-0.0620".
- Pyrophyllite caption "Pearly radial cluster of pyrophyllite from Hillsboro District, Orange County, North Carolina".
- Pyrophyllite category "Silicate mineral".
- Pyrophyllite cleavage "[001] Perfect".
- Pyrophyllite color "Brown green, brownish yellow, greenish, gray green, gray white".
- Pyrophyllite diaphaneity "Translucent to opaque".
- Pyrophyllite formula "Al2Si4O102".
- Pyrophyllite fusibility "Infusible, exfoliates".
- Pyrophyllite gravity "2.65".
- Pyrophyllite habit "Compact spherulitic aggregates of needlelike radiating crystals; as fine grained foliated laminae, granular, massive".
- Pyrophyllite hasPhotoCollection Pyrophyllite.
- Pyrophyllite luster "Pearly to dull".
- Pyrophyllite mohs "1.5".
- Pyrophyllite molweight "360.31".
- Pyrophyllite name "Pyrophyllite".
- Pyrophyllite opticalprop "Biaxial".
- Pyrophyllite refractive "nα=1.534-1.556, nβ=1.586-1.589, nγ=1.596-1.601".
- Pyrophyllite streak "white".
- Pyrophyllite symmetry "Monoclinic / triclinic".
- Pyrophyllite system "Monoclinic 2/m - prismatic or triclinic pinacoidal".
- Pyrophyllite tenacity "Flexible inelastic".
- Pyrophyllite unitCell "a = 5.16 Å, b = 8.966 Å, c = 9.347 Å; α = 91.18°, β = 100.46°, γ = 89.64°; Z = 2".
- Pyrophyllite subject Category:Aluminium_minerals.
- Pyrophyllite subject Category:Monoclinic_minerals.
- Pyrophyllite subject Category:Phyllosilicates.
- Pyrophyllite type ChemicalSubstance.
- Pyrophyllite type Mineral.
- Pyrophyllite type ChemicalObject.
- Pyrophyllite type Thing.
- Pyrophyllite comment "Pyrophyllite is a phyllosilicate mineral composed of aluminium silicate hydroxide: Al2Si4O10(OH)2. It occurs in two more or less distinct varieties, namely, as crystalline folia and as compact masses; distinct crystals are not known.The folia have a pronounced pearly lustre, owing to the presence of a perfect cleavage parallel to their surfaces: they are flexible but not elastic, and are usually arranged radially in fan-like or spherical groups.".
- Pyrophyllite label "Pirofilita".
- Pyrophyllite label "Pirofillite".
- Pyrophyllite label "Pirofyllit".
- Pyrophyllite label "Pyrofylliet".
- Pyrophyllite label "Pyrophyllit".
- Pyrophyllite label "Pyrophyllite".
- Pyrophyllite label "Pyrophyllite".
- Pyrophyllite label "Пирофиллит".
- Pyrophyllite label "叶蜡石".
- Pyrophyllite label "葉ろう石".
- Pyrophyllite sameAs Pyrofylit.
- Pyrophyllite sameAs Pyrophyllit.
- Pyrophyllite sameAs Pirofilita.
- Pyrophyllite sameAs Pyrophyllite.
- Pyrophyllite sameAs Pirofillite.
- Pyrophyllite sameAs 葉ろう石.
- Pyrophyllite sameAs Pyrofylliet.
- Pyrophyllite sameAs Pirofyllit.
- Pyrophyllite sameAs m.02tgrj.
- Pyrophyllite sameAs Q409470.
- Pyrophyllite sameAs Q409470.
- Pyrophyllite wasDerivedFrom Pyrophyllite?oldid=582716366.
- Pyrophyllite depiction Pyrophyllite-118706.jpg.
- Pyrophyllite isPrimaryTopicOf Pyrophyllite.
- Pyrophyllite name "Pyrophyllite".
