About: Tschermakite

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Ca-amphibole, double chain inosilicate mineral

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dbo:description
  • minerale (it)
  • Ca-amphibole, double chain inosilicate mineral (en)
  • mineral inosilicat (ca)
  • mineral inosilicato anfíbol (es)
  • Ca2(Mg,Fe)3Al2(Si6Al2)O22(OH)2 (sr)
  • Mineral, Calcium-Amphibol (de)
  • espèce minérale des inosilicate (fr)
dbo:thumbnail
dbo:wikiPageWikiLink
dbp:2v
  • Measured: 60° to 90° (en)
dbp:birefringence
  • δ = 0.015–0.028 (en)
dbp:caption
  • Anyolite, a metamorphic rock: chrome-zoisite , tschermakite , ruby (en)
dbp:category
  • Silicate mineral (en)
dbp:class
  • Prismatic (en)
dbp:cleavage
  • Perfect on {110} Parting on {100}{001} (en)
dbp:color
  • Medium to dark green to green-black to black, brown (en)
dbp:diaphaneity
  • Transparent (en)
dbp:formula
  • ☐Ca2O222 (en)
dbp:fracture
  • Conchoidal (en)
dbp:gravity
  • 3.150000 (xsd:double)
dbp:habit
  • As prismatic crystals or as reaction rims on other minerals (en)
dbp:imagesize
  • 260 (xsd:integer)
dbp:imasymbol
  • Tsr (en)
dbp:luster
  • Vitreous (en)
dbp:mohs
  • 5 (xsd:integer)
dbp:name
  • Tschermakite (en)
dbp:opticalprop
  • Biaxial (en)
dbp:pleochroism
  • Visible in browns and greens (en)
dbp:refractive
  • nα = 1.623–1.660 nβ = 1.630–1.680 nγ = 1.638–1.688 (en)
dbp:streak
  • Pale grey-green (en)
dbp:strunz
  • 9 (xsd:integer)
dbp:symmetry
  • C2/m (en)
dbp:system
dbp:tenacity
  • Brittle (en)
dbp:twinning
  • Simple or multiple twinning parallel to {100} (en)
dbp:unitCell
  • a = 9.762 Å (en)
  • b = 17.994 Å (en)
  • c = 5.325 Å; (en)
  • β = 105.10°; Z = 2 (en)
dbp:wikiPageUsesTemplate
dct:subject
gold:hypernym
rdf:type
rdfs:label
  • Tschermakite (en)
  • Tschermakita (ca)
  • Tschermakita (es)
  • Tschermakita (eu)
  • Tschermakite (it)
  • Tschermakiet (nl)
owl:sameAs
prov:wasDerivedFrom
foaf:depiction
foaf:isPrimaryTopicOf
foaf:name
  • Tschermakite (en)
is dbo:wikiPageWikiLink of
is foaf:primaryTopic of
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