Pyrofyllit

Pyrophyllite is a phyllosilicate mineral composed of aluminium silicate hydroxide: Al2Si4O10(OH)2. It occurs in two forms (habits): crystalline folia and compact masses; distinct crystals are not known.

In the Vinony graph

Within Vinony's link graph, Pyrofyllit is referenced by 167 other articles, and connects out to chlorite group, serpentine mineral subgroup and lepidolite.

It is catalogued under topics including Aluminium minerals, Luminescent minerals and Minerals in space group 15.

Its subject is documented across 26 Wikipedia language editions.

Key facts

Mineral.name: Pyrophyllite
Mineral.category: Phyllosilicate minerals
Mineral.group: Pyrophyllite-Talc group
Mineral.boxbgcolor: dfce9d
Mineral.image: Pyrophyllite-118706.jpg
Mineral.imagesize: 260px
Mineral.caption: Pearly radial cluster of pyrophyllite from Hillsborough District, Orange County, North Carolina (Size: 11 × 7.3 × 6.6 cm)
Mineral.formula: Al2Si4O10(OH)2
Mineral.IMAsymbol: Prl
Mineral.molweight: 360.31 g/mol
Mineral.system: Monoclinic or triclinic
Mineral.class: Prismatic (2/m) or pinacoidal ()
Mineral.symmetry: C2/c or C
Mineral.unit cell: a = 5.16 Å, b = 8.966(3) Å, c = 9.347(6) Å; α = 91.18°, β = 100.46°, γ = 89.64°; Z = 2
Mineral.color: Brown green, brownish yellow, greenish, gray green, gray white
Mineral.habit: Compact spherulitic aggregates of needlelike radiating crystals; as fine grained foliated laminae, granular, massive
Mineral.cleavage: [001] Perfect
Mineral.tenacity: Flexible inelastic

via Wikipedia infobox

Wikidata facts

Subclass of: phyllosilicates
Named after: leaf
Image: Pyrophyllite-386094.jpg

Show 10 more facts

type locality (geology): Beryozovskoye deposit
streak color: white
crystal system: triclinic crystal system
Nickel-Strunz 9th edition (updated 2009): 9.EC.10
Commons category: Pyrophyllite
Nickel-Strunz '10th ed', review of (9th ed/ 2009 update): 9.EC.10
IMA Mineral Symbol: Prl
described by source: Encyclopædia Britannica 11th edition
chemical formula: Al₂Si₄O₁₀(OH)₂
Strunz 8th edition (series ID, updated): VIII/E.04

Sources (2)

via Wikidata · CC0

Article · Svenska

Pyrofyllit är ett mineral, som består av aluminiumsilikat och bildar mjuka, böjliga, pärlemorglänsande blad. Utsätts den för värme delar den sig i tunnare blad och har därav fått sitt namn.

Abstract from DBpedia / Wikipedia · CC BY-SA