About: Todorokite

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

Todorokite is a rare complex hydrous manganese oxide mineral with the chemical formula (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12·3-4H2O. It was named in 1934 for the type locality, the Todoroki mine, Hokkaido, Japan. It belongs to the prismatic class 2/m of the monoclinic crystal system, but the angle β between the a and c axes is close to 90°, making it seem orthorhombic. It is a brown to black mineral which occurs in massive or tuberose forms. It is quite soft with a Mohs hardness of 1.5, and a specific gravity of 3.49 - 3.82. It is a component of deep ocean basin manganese nodules.

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dbo:abstract
  • La todorokita és un mineral de la classe dels òxids. Va ser anomenat l'any 1934 per Toyofumi Yoshimura per la seva localitat tipus, la mina Todoroki, al Japó. És un òxid de manganès relativament comú que se sol trobar formant agregats. Habitualment fibrós, tot i que també compacte o aïllat. Els agregats micàcis poden ser confosos amb , i les formes fibroses amb pirolusita. (ca)
  • Todorokita oxido motako minerala da. (eu)
  • La todorokita es un mineral de la clase de los minerales óxidos. Fue descubierta en 1934 en la mina Todoroki en la isla de Hokkaidō (Japón),​ siendo nombrada así por el nombre de la mina. (es)
  • Todorokite is a rare complex hydrous manganese oxide mineral with the chemical formula (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12·3-4H2O. It was named in 1934 for the type locality, the Todoroki mine, Hokkaido, Japan. It belongs to the prismatic class 2/m of the monoclinic crystal system, but the angle β between the a and c axes is close to 90°, making it seem orthorhombic. It is a brown to black mineral which occurs in massive or tuberose forms. It is quite soft with a Mohs hardness of 1.5, and a specific gravity of 3.49 - 3.82. It is a component of deep ocean basin manganese nodules. (en)
  • La todorokite è un minerale appartenente al gruppo della coronadite. (it)
  • 轟石(とどろきせき、とどろきいし、Todorokite)とは、鉱物(酸化鉱物)の1つ。結晶系は単斜晶系。1934年に北海道で初めて発見された鉱物であり、日本で発見され、独立種として承認された鉱物としては最も古い歴史を持つ。 (ja)
  • Тодорокит — минерал, М2+Mn43+O7*2-xH2O; где M2+ = Mn, Zn, Mg, Ba, Cr, Ca, Pb, Na2, K2. Минерал впервые обнаружен в шахте Тодороки (Хоккайдо, Япония) в 1934 году. (ru)
  • Тодорокіт (рос. тодорокит; англ. todorokite; нім. Todorokit m) — поширений мінерал манґанових родовищ, водний оксид лужних земель. Назва — від родов. Тодорокі (T.Yoshimura, 1934). Синоніми: делатореїт. (uk)
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dbo:wikiPageID
  • 2418378 (xsd:integer)
dbo:wikiPageLength
  • 17144 (xsd:nonNegativeInteger)
dbo:wikiPageRevisionID
  • 1123901504 (xsd:integer)
dbo:wikiPageWikiLink
dbp:birefringence
  • nearly 0.02 (en)
dbp:boxwidth
  • 24 (xsd:integer)
dbp:caption
  • Todorokite with manjioite and calcite from the Smartt Mine, Kuruman District, South Africa (en)
dbp:category
  • Manganese minerals (en)
dbp:class
  • Prismatic (en)
dbp:cleavage
  • Perfect on {100} and {010} (en)
dbp:color
  • Dark brown or brownish black, brown in transmitted light (en)
dbp:dana
  • 7.800000 (xsd:double)
dbp:diaphaneity
  • Opaque, transparent in very thin slivers (en)
dbp:fusibility
  • Does not fuse (en)
dbp:gravity
  • 3.500000 (xsd:double)
dbp:habit
  • Aggregates of minute lathlike crystals (en)
dbp:imasymbol
  • Tdr (en)
dbp:luster
  • Metallic to dull, silky in aggregates (en)
dbp:molweight
  • 583.050000 (xsd:double)
dbp:name
  • Todorokite (en)
dbp:opticalprop
  • Biaxial (en)
dbp:pleochroism
  • X = dark brown, Z = yellowish brown (en)
dbp:refractive
  • Greater than 1.74 (en)
dbp:solubility
  • Soluble in acids (en)
dbp:streak
  • Black or dark brown (en)
dbp:strunz
  • 4 (xsd:integer)
  • (4/D.09-10 ) (en)
dbp:symmetry
  • P2/m (en)
dbp:system
  • Monoclinic (en)
dbp:twinning
  • Contact twins are common (en)
dbp:wikiPageUsesTemplate
dcterms:subject
gold:hypernym
rdf:type
rdfs:comment
  • La todorokita és un mineral de la classe dels òxids. Va ser anomenat l'any 1934 per Toyofumi Yoshimura per la seva localitat tipus, la mina Todoroki, al Japó. És un òxid de manganès relativament comú que se sol trobar formant agregats. Habitualment fibrós, tot i que també compacte o aïllat. Els agregats micàcis poden ser confosos amb , i les formes fibroses amb pirolusita. (ca)
  • Todorokita oxido motako minerala da. (eu)
  • La todorokita es un mineral de la clase de los minerales óxidos. Fue descubierta en 1934 en la mina Todoroki en la isla de Hokkaidō (Japón),​ siendo nombrada así por el nombre de la mina. (es)
  • Todorokite is a rare complex hydrous manganese oxide mineral with the chemical formula (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12·3-4H2O. It was named in 1934 for the type locality, the Todoroki mine, Hokkaido, Japan. It belongs to the prismatic class 2/m of the monoclinic crystal system, but the angle β between the a and c axes is close to 90°, making it seem orthorhombic. It is a brown to black mineral which occurs in massive or tuberose forms. It is quite soft with a Mohs hardness of 1.5, and a specific gravity of 3.49 - 3.82. It is a component of deep ocean basin manganese nodules. (en)
  • La todorokite è un minerale appartenente al gruppo della coronadite. (it)
  • 轟石(とどろきせき、とどろきいし、Todorokite)とは、鉱物(酸化鉱物)の1つ。結晶系は単斜晶系。1934年に北海道で初めて発見された鉱物であり、日本で発見され、独立種として承認された鉱物としては最も古い歴史を持つ。 (ja)
  • Тодорокит — минерал, М2+Mn43+O7*2-xH2O; где M2+ = Mn, Zn, Mg, Ba, Cr, Ca, Pb, Na2, K2. Минерал впервые обнаружен в шахте Тодороки (Хоккайдо, Япония) в 1934 году. (ru)
  • Тодорокіт (рос. тодорокит; англ. todorokite; нім. Todorokit m) — поширений мінерал манґанових родовищ, водний оксид лужних земель. Назва — від родов. Тодорокі (T.Yoshimura, 1934). Синоніми: делатореїт. (uk)
rdfs:label
  • Todorokita (ca)
  • Todorokita (eu)
  • Todorokita (es)
  • Todorokite (it)
  • 轟石 (ja)
  • Todorokite (en)
  • Тодорокит (ru)
  • Тодорокіт (uk)
owl:sameAs
prov:wasDerivedFrom
foaf:depiction
foaf:isPrimaryTopicOf
foaf:name
  • Todorokite (en)
is dbo:wikiPageWikiLink of
is foaf:primaryTopic of
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