Manganokhomyakovite
Manganokhomyakovite is a very rare mineral of the eudialyte group, with the chemical formula Na12Sr3Ca6Mn3Zr3WSi(Si9O27)2(Si3O9)2O(O,OH,H2O)3(OH,Cl)2. This formula is in extended form (based on the original one), to show the presence of cyclic silicate groups and domination of silicon at the M4 site, basing on the nomenclature of the eudialyte group. Some niobium substitutes for tungsten in khomyakovite. As suggested by its name, manganokhomyakovite is a manganese-analogue of khomyakovite, the latter being more rare. The two minerals are the only group representatives, beside taseqite, with species-defining strontium, although many other members display strontium diadochy. Manganokhomyakovite is the third eudialyte-group mineral with essential tungsten (after johnsenite-(Ce) and khomyakovi
primaryTopic
Manganokhomyakovite
Manganokhomyakovite is a very rare mineral of the eudialyte group, with the chemical formula Na12Sr3Ca6Mn3Zr3WSi(Si9O27)2(Si3O9)2O(O,OH,H2O)3(OH,Cl)2. This formula is in extended form (based on the original one), to show the presence of cyclic silicate groups and domination of silicon at the M4 site, basing on the nomenclature of the eudialyte group. Some niobium substitutes for tungsten in khomyakovite. As suggested by its name, manganokhomyakovite is a manganese-analogue of khomyakovite, the latter being more rare. The two minerals are the only group representatives, beside taseqite, with species-defining strontium, although many other members display strontium diadochy. Manganokhomyakovite is the third eudialyte-group mineral with essential tungsten (after johnsenite-(Ce) and khomyakovi
has abstract
La manganokhomyakovita és un m ...... ímica de les roques alcalines.
@ca
La manganokhomyakovite è un minerale appartenente al gruppo dell'eudialite.
@it
Manganokhomyakovita silikato motako minerala da eta eudialyte taldearen kidea da.
@eu
Manganokhomyakovite is a very ...... senite-(Ce) and khomyakovite).
@en
Wikipage page ID
49,599,124
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Wikipage revision ID
1,020,747,441
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caption
Manganokhomyakovite
@en
category
Cyclosilicates
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class
Ditrigonal pyramidal
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cleavage
None
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color
Orange to orange-red
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dana
density
diaphaneity
Transparent to translucent
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fracture
Uneven
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habit
pseudo-octahedra
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luster
Vitreous
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name
Manganokhomyakovite
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opticalprop
Uniaxial
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pleochroism
None
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refractive
nω=1.63, nε=1.63
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streak
White
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strunz
(8/E.23-35 )
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symmetry
system
tenacity
Brittle
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unit cell
a = 14.28, c = 30.12 [Å] ; Z = 3
@en
wikiPageUsesTemplate
subject
comment
La manganokhomyakovita és un m ...... ímica de les roques alcalines.
@ca
La manganokhomyakovite è un minerale appartenente al gruppo dell'eudialite.
@it
Manganokhomyakovita silikato motako minerala da eta eudialyte taldearen kidea da.
@eu
Manganokhomyakovite is a very ...... johnsenite-(Ce) and khomyakovi
@en
label
Manganokhomyakovita
@ca
Manganokhomyakovita
@eu
Manganokhomyakovite
@en
Manganokhomyakovite
@it
wasDerivedFrom
isPrimaryTopicOf
name
Manganokhomyakovite
@en