Birnessite
Birnessite (Na0.3Ca0.1K0.1)(Mn4+,Mn3+)2O4 · 1.5 H2O is an oxide mineral of manganese along with calcium, potassium and sodium. It has a dark brown to black color with a submetallic luster. It is also very soft, with a Mohs hardness of 1.5. Birnessite is formed by precipitation in lakes, oceans and groundwater and is a major component of desert varnish and deep sea manganese nodules.
BuseriteDendrite (crystal)Ferromanganese nodulesList of mineralsList of minerals (synonyms)List of minerals recognized by the International Mineralogical Association (B)List of minerals recognized by the International Mineralogical Association (U–V)Manganese noduleManganese oxideOxide mineralPsilomelanePyrolusiteSachrang FormationTodorokite
Link from a Wikipage to another Wikipage
primaryTopic
Birnessite
Birnessite (Na0.3Ca0.1K0.1)(Mn4+,Mn3+)2O4 · 1.5 H2O is an oxide mineral of manganese along with calcium, potassium and sodium. It has a dark brown to black color with a submetallic luster. It is also very soft, with a Mohs hardness of 1.5. Birnessite is formed by precipitation in lakes, oceans and groundwater and is a major component of desert varnish and deep sea manganese nodules.
has abstract
Birnessita oxido motako minerala da eta birnessite taldearen kidea da.
@eu
Birnessite (Na0.3Ca0.1K0.1)(Mn ...... nd deep sea manganese nodules.
@en
La birnessita es un mineral de ...... mbrada así por esta localidad.
@es
La birnessita és un mineral de ...... Escòcia, on va ser descoberta.
@ca
La birnessite è un minerale.
@it
Бирнессит (англ. — Birnessite) ...... бласти Абердиншир в Шотландии.
@ru
Link from a Wikipage to an external page
Wikipage page ID
page length (characters) of wiki page
Wikipage revision ID
1,020,767,311
Link from a Wikipage to another Wikipage
birefringence
δ = 0.040
@en
category
class
Prismatic
@en
cleavage
[001] perfect
@en
color
Dark brown to black
@en
dana
diaphaneity
Nearly opaque
@en
habit
Rarely in platelets, to 50 μm; ...... lline, spherulitic, cellular .
@en
imagesize
luster
Sub-metallic, dull
@en
mohs
name
Birnessite
@en
opticalprop
Uniaxial
@en
Other
Identification by optical properties is impossible.
@en
refractive
nω = 1.730 nε = 1.690
@en
symmetry
C2/m
@en
wikiPageUsesTemplate
subject
hypernym
comment
Birnessita oxido motako minerala da eta birnessite taldearen kidea da.
@eu
Birnessite (Na0.3Ca0.1K0.1)(Mn ...... nd deep sea manganese nodules.
@en
La birnessita es un mineral de ...... mbrada así por esta localidad.
@es
La birnessita és un mineral de ...... Escòcia, on va ser descoberta.
@ca
La birnessite è un minerale.
@it
Бирнессит (англ. — Birnessite) ...... бласти Абердиншир в Шотландии.
@ru
label
Birnessita
@ca
Birnessita
@es
Birnessita
@eu
Birnessite
@en
Birnessite
@it
Бернессит
@ru
wasDerivedFrom
isPrimaryTopicOf
name
Birnessite
@en