Columbite
Columbite, also called niobite, niobite-tantalite and columbate [(Fe, Mn)Nb2O6], is a black mineral group that is an ore of niobium. It has a submetallic luster and a high density and is a niobate of iron and manganese. This mineral group was first found in Haddam, Connecticut, in the United States. It forms a series with the tantalum-dominant analogue ferrotantalite and one with the manganese-dominant analogue manganocolumbite. The iron-rich member of the columbite group is ferrocolumbite. Some tin and tungsten may be present in the mineral. Yttrocolumbite is the yttrium-rich columbite with the formula (Y,U,Fe)(Nb,Ta)O4. It is a radioactive mineral found in Mozambique.
primaryTopic
Columbite
Columbite, also called niobite, niobite-tantalite and columbate [(Fe, Mn)Nb2O6], is a black mineral group that is an ore of niobium. It has a submetallic luster and a high density and is a niobate of iron and manganese. This mineral group was first found in Haddam, Connecticut, in the United States. It forms a series with the tantalum-dominant analogue ferrotantalite and one with the manganese-dominant analogue manganocolumbite. The iron-rich member of the columbite group is ferrocolumbite. Some tin and tungsten may be present in the mineral. Yttrocolumbite is the yttrium-rich columbite with the formula (Y,U,Fe)(Nb,Ta)O4. It is a radioactive mineral found in Mozambique.
has abstract
Columbit (Columbeisen, Niobit) ...... er Bezeichnung Coltan bekannt.
@de
Columbita é um mineral ortorrô ...... l passa a chamar-se tantalita.
@pt
Columbite, also called niobite ...... 76 cm × 61 cm (30 in × 24 in).
@en
Het mineraal columbiet is een ...... an de bestanddelen van coltan.
@nl
Kolumbit = columbit – nieaktua ...... , columbite-tantalite, niobit.
@pl
La columbita, también llamada ...... tantalita, formando el coltán.
@es
La columbite ou niobite, niobi ...... avec le niobium et le tantale.
@fr
La columbite è un minerale del ...... , secondariamente, del niobio.
@it
Колумби́т, или ниобит — минер ...... называли колумбием) и тантал.
@ru
الكولومبيت (Columbite) ويسمى أ ...... التي يُطلق عليها اسم بيغماتيت.
@ar
thumbnail
Wikipage page ID
Wikipage revision ID
740,270,438
category
cleavage
[010] Distinct
color
Black, brownish black.
formula
fracture
Sub Conchoidal: Fractures deve ...... ized by semi-curving surfaces.
gravity
habit
Massive - Granular - Common te ...... stal surface or cleavage face.
luster
opticalprop
Biaxial , b=2.29–2.4
Other
non-radioactive, non-fluorescent.
streak
blackish brown
system
Orthorhombic, , SpaceGroup = Pcan
subject
hypernym
comment
Columbit (Columbeisen, Niobit) ...... folgende Farbe und Chemismus:
@de
Columbita é um mineral ortorrô ...... l passa a chamar-se tantalita.
@pt
Columbite, also called niobite ...... e mineral found in Mozambique.
@en
Het mineraal columbiet is een ...... an de bestanddelen van coltan.
@nl
Kolumbit = columbit – nieaktua ...... , columbite-tantalite, niobit.
@pl
La columbita, también llamada ...... tantalita, formando el coltán.
@es
La columbite ou niobite, niobi ...... avec le niobium et le tantale.
@fr
La columbite è un minerale del ...... , secondariamente, del niobio.
@it
Колумби́т, или ниобит — минер ...... называли колумбием) и тантал.
@ru
الكولومبيت (Columbite) ويسمى أ ...... التي يُطلق عليها اسم بيغماتيت.
@ar
label
Columbiet
@nl
Columbit
@de
Columbita
@es
Columbita
@pt
Columbite
@en
Columbite
@it
Ferrocolumbite
@fr
Kolumbit
@pl
Колумбит
@ru
كولومبيت
@ar
wasDerivedFrom
depiction
isPrimaryTopicOf
name
Columbite-(Fe)
@en