About: Clinohumite

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Clinohumite is an uncommon member of the humite group, a magnesium silicate according to the chemical formula (Mg, Fe)9(SiO4)4(F,OH)2. The formula can be thought of as four olivine (Mg2SiO4), plus one brucite (Mg(OH)2). Indeed, the mineral is essentially a hydrated olivine and occurs in altered ultramafic rocks and carbonatites. Most commonly found as tiny indistinct grains, large euhedral clinohumite crystals are sought by collectors and occasionally fashioned into bright, yellow-orange gemstones. Only two sources of gem-quality material are known: the Pamir Mountains of Tajikistan, and the Taymyr region of northern Siberia. It is one of two humite group minerals that have been cut into gems, the other being the much more common chondrodite.

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dbo:abstract
  • La clinohumita és un mineral de la classe dels silicats, que pertany al . Va rebre el seu nom al segle xix per Alfred Des Cloizeaux en al·lusió a la seva estructura cristal·lina monoclínica i per la seva relació amb la humita. (ca)
  • Clinohumite is an uncommon member of the humite group, a magnesium silicate according to the chemical formula (Mg, Fe)9(SiO4)4(F,OH)2. The formula can be thought of as four olivine (Mg2SiO4), plus one brucite (Mg(OH)2). Indeed, the mineral is essentially a hydrated olivine and occurs in altered ultramafic rocks and carbonatites. Most commonly found as tiny indistinct grains, large euhedral clinohumite crystals are sought by collectors and occasionally fashioned into bright, yellow-orange gemstones. Only two sources of gem-quality material are known: the Pamir Mountains of Tajikistan, and the Taymyr region of northern Siberia. It is one of two humite group minerals that have been cut into gems, the other being the much more common chondrodite. (en)
  • Klinohumita silikato motako minerala da eta humite series taldearen kidea da. (eu)
  • La clinohumita es un mineral de la clase de los silicatos, que pertenece al . Recibió su nombre en el siglo XIX por Alfred Des Cloizeaux en alusión a su estructura cristalina monoclínica y por su relación con la humita. (es)
  • La clinohumite est un minéral du groupe de la humite, un silicate de magnésium de formule (Mg,Fe)9(SiO4)4(F,OH)2. Il a été découvert en 1876 sous forme non gemmifère au Vésuve par Alfred Des Cloizeaux. Des dépôts exploitables ont été mis au jour en 1983 au Pamir, puis en 2000 dans le district dolgano-nénètse du Taïmyr, en Sibérie et en 2005 dans les monts Mahenge en Tanzanie. (fr)
  • La clinohumite è un minerale (nesosilicato) appartenente al gruppo dell'humite. Il nome deriva da quello dell'humite e dal fatto che questa pietra appartiene al sistema monoclino. (it)
  • Het mineraal clinohumiet is een fluor-houdend magnesium-ijzer-silicaat met de chemische formule (Mg,Fe2+)9(SiO4)4(F,OH)2. Het mineraal behoort tot de nesosilicaten. (nl)
  • Кліногумі́т — рідкісний мінерал, силікат-гідроксилфлуорид магнію острівної будови. (uk)
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  • 1071635565 (xsd:integer)
dbo:wikiPageWikiLink
dbp:2v
  • Measured: 52° to 90° (en)
dbp:birefringence
  • +0.028 (en)
dbp:category
dbp:class
  • Prismatic (en)
dbp:cleavage
  • Poor on {100} (en)
dbp:color
  • Brownish to orange, yellow, red (en)
dbp:diaphaneity
  • Transparent to translucent (en)
dbp:formula
  • 942 (xsd:integer)
dbp:fracture
  • Subconchoidal to uneven (en)
dbp:gravity
  • 3.170000 (xsd:double)
dbp:habit
  • Granular, prismatic, twinned (en)
dbp:imasymbol
  • Chu (en)
dbp:luster
  • Vitreous to resinous (en)
dbp:mohs
  • 6 (xsd:integer)
dbp:name
  • Clinohumite (en)
dbp:opticalprop
  • biaxial (en)
dbp:pleochroism
  • X = golden yellow, yellow-brown, deep reddish yellow; Y = pale yellow, yellow-orange, light yellow; Z = pale yellow, yellow-orange, colorless (en)
dbp:refractive
  • nα = 1.623 - 1.702 nβ = 1.636 - 1.709 nγ = 1.651 - 1.728 (en)
dbp:streak
  • White (en)
dbp:symmetry
  • P21/c (en)
dbp:system
dbp:twinning
  • Simple, lamellar common on {100} (en)
dbp:unitCell
  • a = 13.71 Å, b = 4.75 Å, (en)
  • c = 10.29 Å; β = 100.83°; Z = 2 (en)
dbp:var
  • Titanclinohumite (en)
dbp:var1text
  • Titanoan; 9 (en)
  • [2|4] (en)
dbp:wikiPageUsesTemplate
dbp:wordnet_type
dcterms:subject
rdf:type
rdfs:comment
  • La clinohumita és un mineral de la classe dels silicats, que pertany al . Va rebre el seu nom al segle xix per Alfred Des Cloizeaux en al·lusió a la seva estructura cristal·lina monoclínica i per la seva relació amb la humita. (ca)
  • Clinohumite is an uncommon member of the humite group, a magnesium silicate according to the chemical formula (Mg, Fe)9(SiO4)4(F,OH)2. The formula can be thought of as four olivine (Mg2SiO4), plus one brucite (Mg(OH)2). Indeed, the mineral is essentially a hydrated olivine and occurs in altered ultramafic rocks and carbonatites. Most commonly found as tiny indistinct grains, large euhedral clinohumite crystals are sought by collectors and occasionally fashioned into bright, yellow-orange gemstones. Only two sources of gem-quality material are known: the Pamir Mountains of Tajikistan, and the Taymyr region of northern Siberia. It is one of two humite group minerals that have been cut into gems, the other being the much more common chondrodite. (en)
  • Klinohumita silikato motako minerala da eta humite series taldearen kidea da. (eu)
  • La clinohumita es un mineral de la clase de los silicatos, que pertenece al . Recibió su nombre en el siglo XIX por Alfred Des Cloizeaux en alusión a su estructura cristalina monoclínica y por su relación con la humita. (es)
  • La clinohumite est un minéral du groupe de la humite, un silicate de magnésium de formule (Mg,Fe)9(SiO4)4(F,OH)2. Il a été découvert en 1876 sous forme non gemmifère au Vésuve par Alfred Des Cloizeaux. Des dépôts exploitables ont été mis au jour en 1983 au Pamir, puis en 2000 dans le district dolgano-nénètse du Taïmyr, en Sibérie et en 2005 dans les monts Mahenge en Tanzanie. (fr)
  • La clinohumite è un minerale (nesosilicato) appartenente al gruppo dell'humite. Il nome deriva da quello dell'humite e dal fatto che questa pietra appartiene al sistema monoclino. (it)
  • Het mineraal clinohumiet is een fluor-houdend magnesium-ijzer-silicaat met de chemische formule (Mg,Fe2+)9(SiO4)4(F,OH)2. Het mineraal behoort tot de nesosilicaten. (nl)
  • Кліногумі́т — рідкісний мінерал, силікат-гідроксилфлуорид магнію острівної будови. (uk)
rdfs:label
  • Clinohumite (en)
  • Clinohumita (ca)
  • Clinohumita (es)
  • Klinohumita (eu)
  • Clinohumite (fr)
  • Clinohumite (it)
  • Clinohumiet (nl)
  • Кліногуміт (uk)
owl:sameAs
prov:wasDerivedFrom
foaf:depiction
foaf:isPrimaryTopicOf
foaf:name
  • Clinohumite (en)
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