About: Apache tears

An Entity of Type: PhysicalEntity100001930, from Named Graph: http://dbpedia.org, within Data Space: dbpedia.org

Apache tears are rounded pebbles of obsidian or "obsidianites" composed of black or dark-colored natural volcanic glass, usually of rhyolitic composition and bearing conchoidal fracture. Also known by the lithologic term marekanite, this variety of obsidian occurs as subrounded to subangular bodies up to about 2 in (51 mm) in diameter, often bearing indented surfaces. Internally the pebbles sometimes contain fine bands or microlites and though in reflected light they appear black and opaque, they may be translucent in transmitted light. Apache tears fall between 5 and 5.5 in hardness on the Mohs scale.

Property Value
dbo:abstract
  • Apache tears are rounded pebbles of obsidian or "obsidianites" composed of black or dark-colored natural volcanic glass, usually of rhyolitic composition and bearing conchoidal fracture. Also known by the lithologic term marekanite, this variety of obsidian occurs as subrounded to subangular bodies up to about 2 in (51 mm) in diameter, often bearing indented surfaces. Internally the pebbles sometimes contain fine bands or microlites and though in reflected light they appear black and opaque, they may be translucent in transmitted light. Apache tears fall between 5 and 5.5 in hardness on the Mohs scale. (en)
  • Сльози апача — округлі утворення з обсидіану (вулканічного чорного скла) діаметром від 0,5 до 5 см. Сльози апача непрозорі у відбитому світлі, але просвічуються на світло. Колір — від чорного до червоного і до коричневого. Вони часто зустрічаються вбудовані в сірувато-білий перліт. Сльози апача за шкалою Мооса мають твердість від 5 до 5,5. (uk)
dbo:thumbnail
dbo:wikiPageID
  • 1869575 (xsd:integer)
dbo:wikiPageLength
  • 4432 (xsd:nonNegativeInteger)
dbo:wikiPageRevisionID
  • 1103474770 (xsd:integer)
dbo:wikiPageWikiLink
dbp:wikiPageUsesTemplate
dcterms:subject
rdf:type
rdfs:comment
  • Apache tears are rounded pebbles of obsidian or "obsidianites" composed of black or dark-colored natural volcanic glass, usually of rhyolitic composition and bearing conchoidal fracture. Also known by the lithologic term marekanite, this variety of obsidian occurs as subrounded to subangular bodies up to about 2 in (51 mm) in diameter, often bearing indented surfaces. Internally the pebbles sometimes contain fine bands or microlites and though in reflected light they appear black and opaque, they may be translucent in transmitted light. Apache tears fall between 5 and 5.5 in hardness on the Mohs scale. (en)
  • Сльози апача — округлі утворення з обсидіану (вулканічного чорного скла) діаметром від 0,5 до 5 см. Сльози апача непрозорі у відбитому світлі, але просвічуються на світло. Колір — від чорного до червоного і до коричневого. Вони часто зустрічаються вбудовані в сірувато-білий перліт. Сльози апача за шкалою Мооса мають твердість від 5 до 5,5. (uk)
rdfs:label
  • Apache tears (en)
  • Сльози апача (uk)
owl:sameAs
prov:wasDerivedFrom
foaf:depiction
foaf:isPrimaryTopicOf
is dbo:wikiPageRedirects of
is dbo:wikiPageWikiLink of
is foaf:primaryTopic of
Powered by OpenLink Virtuoso    This material is Open Knowledge     W3C Semantic Web Technology     This material is Open Knowledge    Valid XHTML + RDFa
This content was extracted from Wikipedia and is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License