Voronkovite
Voronkovite is a very rare mineral of the eudialyte group with the formula Na15(Na,Ca,Ce)3(Mn,Ca)3Fe3Zr3Si2Si24O72(OH,O)4Cl·H2O. The formula is based on the simplified original one; it does not show the presence of cyclic silicate groups, but two M3- and M4-site silicon atoms are shown separately (basing on the nomenclature of the eudialyte group). Voronkovite has lowered symmetry (space group R3, instead of more specific for the group R3m one), similarly to some other eudialyte-group members: aqualite, labyrinthite, oneillite and raslakite. The specific feature of voronkovite is, among others, strong enrichment in sodium.
primaryTopic
Voronkovite
Voronkovite is a very rare mineral of the eudialyte group with the formula Na15(Na,Ca,Ce)3(Mn,Ca)3Fe3Zr3Si2Si24O72(OH,O)4Cl·H2O. The formula is based on the simplified original one; it does not show the presence of cyclic silicate groups, but two M3- and M4-site silicon atoms are shown separately (basing on the nomenclature of the eudialyte group). Voronkovite has lowered symmetry (space group R3, instead of more specific for the group R3m one), similarly to some other eudialyte-group members: aqualite, labyrinthite, oneillite and raslakite. The specific feature of voronkovite is, among others, strong enrichment in sodium.
has abstract
Voronkovite is a very rare min ...... , strong enrichment in sodium.
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Wikipage page ID
49,602,790
Wikipage revision ID
744,883,538
category
color
diaphaneity
formula
fracture
habit
Rounded crystals
luster
opticalprop
pleochroism
Lemon yellow , brownish pink
system
tenacity
unit cell
a = 14.21, c = 30.27 [Å]; Z = 3
subject
comment
Voronkovite is a very rare min ...... , strong enrichment in sodium.
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label
Voronkovite
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wasDerivedFrom
isPrimaryTopicOf
name
Voronkovite
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