Khomyakovite
Khomyakovite is an exceedingly rare mineral of the eudialyte group, with formula Na12Sr3Ca6Fe3Zr3W(Si25O73)(O,OH,H2O)3(OH,Cl)2. The original formula was extended to show the presence of both the cyclic silicate groups and M4-site silicon, according to the nomenclature of the eudialyte group. Some niobium substitutes for tungsten in khomyakovite. Khomyakovite is an iron-analogue of manganokhomyakovite, the second mineral being a bit more common. The two minerals are the only group representatives, beside taseqite, with species-defining strontium, although many other members display strontium diadochy. Khomyakovite is the third eudialyte-group mineral with essential tungsten (after johnsenite-(Ce) and manganokhomyakovite).
primaryTopic
Khomyakovite
Khomyakovite is an exceedingly rare mineral of the eudialyte group, with formula Na12Sr3Ca6Fe3Zr3W(Si25O73)(O,OH,H2O)3(OH,Cl)2. The original formula was extended to show the presence of both the cyclic silicate groups and M4-site silicon, according to the nomenclature of the eudialyte group. Some niobium substitutes for tungsten in khomyakovite. Khomyakovite is an iron-analogue of manganokhomyakovite, the second mineral being a bit more common. The two minerals are the only group representatives, beside taseqite, with species-defining strontium, although many other members display strontium diadochy. Khomyakovite is the third eudialyte-group mineral with essential tungsten (after johnsenite-(Ce) and manganokhomyakovite).
has abstract
Khomyakovita silikato motako minerala da eta eudialyte taldearen kidea da.
@eu
Khomyakovite is an exceedingly ...... (Ce) and manganokhomyakovite).
@en
La khomyakovita és un mineral ...... principal de 80 descripcions.
@ca
La khomyakovite è un minerale appartenente al gruppo dell'eudialite.
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Wikipage page ID
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category
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
aggregates
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luster
Vitreous
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name
Khomyakovite
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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.23-30 )
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symmetry
system
tenacity
Brittle
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unit cell
a = 14.30, c = 30.08 [Å] ; Z = 3
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wikiPageUsesTemplate
subject
comment
Khomyakovita silikato motako minerala da eta eudialyte taldearen kidea da.
@eu
Khomyakovite is an exceedingly ...... (Ce) and manganokhomyakovite).
@en
La khomyakovita és un mineral ...... principal de 80 descripcions.
@ca
La khomyakovite è un minerale appartenente al gruppo dell'eudialite.
@it
label
Khomyakovita
@ca
Khomyakovita
@eu
Khomyakovite
@en
Khomyakovite
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wasDerivedFrom
isPrimaryTopicOf
name
Khomyakovite
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