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Fluocerite, also known as tysonite, is a mineral consisting of cerium and lanthanum fluorides, with the chemical formula (Ce,La)F3. The end members are classified as two different mineral types depending on the cation, fluocerite-(Ce) and fluocerite-(La), corresponding respectively to lanthanum trifluoride and cerium trifluoride. Both crystallize in the trigonal system.

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rdf:type
rdfs:label
  • Fluocerite (en)
rdfs:comment
  • Fluocerite, also known as tysonite, is a mineral consisting of cerium and lanthanum fluorides, with the chemical formula (Ce,La)F3. The end members are classified as two different mineral types depending on the cation, fluocerite-(Ce) and fluocerite-(La), corresponding respectively to lanthanum trifluoride and cerium trifluoride. Both crystallize in the trigonal system. (en)
foaf:name
  • Fluocerite-(Ce) (en)
  • Fluocerite-(La) (en)
name
  • Fluocerite- (en)
dcterms:subject
Wikipage page ID
Wikipage revision ID
Link from a Wikipage to another Wikipage
sameAs
streak
  • White (en)
  • Yellow-white (en)
strunz
tenacity
  • Brittle (en)
unit cell
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class
  • Hexagonal scalenohedral (en)
  • Hexagonal Scalenohedral (en)
colour
  • Light yellow; darkening to yellow- and red-brown; colourless to pale pink (en)
  • Greenish-yellow (en)
density
gravity
symmetry
  • Pc1 (en)
system
  • Trigonal (en)
has abstract
  • Fluocerite, also known as tysonite, is a mineral consisting of cerium and lanthanum fluorides, with the chemical formula (Ce,La)F3. The end members are classified as two different mineral types depending on the cation, fluocerite-(Ce) and fluocerite-(La), corresponding respectively to lanthanum trifluoride and cerium trifluoride. Both crystallize in the trigonal system. Fluocerite-(Ce) was first described (without the Ce) in 1845 from hydrothermal veins in granite in Sweden. Fluocerite-(La) was first described in 1969 from the type locality in central Kazakhstan. The name tysonite was given in 1880 to the same type of mineral found in Colorado. Tysonite-type structure is used for rare-earth fluorides with the P3c1 space group structure. (en)
birefringence
cleavage
  • Distinct/Good (en)
  • Indistinct, Imperfect (en)
dana
diaphaneity
  • Transparent to translucent (en)
formula
  • F3 (en)
fracture
  • Irregular/Uneven, Splintery, Sub-Conchoidal (en)
habit
  • Massive, Primsatic (en)
  • Platy, tabular (en)
luster
  • Vitreous (en)
  • Vitreous, Resinous, Pearly (en)
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molweight
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is Link from a Wikipage to another Wikipage of
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