Rastsvetaevite
Rastsveatevite is a rare mineral of the eudialyte group with the formula Na27K8Ca12Fe3Zr6Si4[Si3O9]4[Si9O27]4(O,OH,H2O)6Cl2. Its structure is modular. It is only the third member of the group after andrianovite and davinciite with essential (site-dominating) potassium. Potassium and sodium enter both N4 and M2 sites. The mineral is named after Russian crystallographer Ramiza K. Rastsvetaeva.
primaryTopic
Rastsvetaevite
Rastsveatevite is a rare mineral of the eudialyte group with the formula Na27K8Ca12Fe3Zr6Si4[Si3O9]4[Si9O27]4(O,OH,H2O)6Cl2. Its structure is modular. It is only the third member of the group after andrianovite and davinciite with essential (site-dominating) potassium. Potassium and sodium enter both N4 and M2 sites. The mineral is named after Russian crystallographer Ramiza K. Rastsvetaeva.
has abstract
La rastsvetaevite è un minerale appartenente al gruppo dell'eudialite.
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Rastsveatevite is a rare miner ...... rapher Ramiza K. Rastsvetaeva.
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Wikipage page ID
49,611,203
Wikipage revision ID
739,049,096
category
class
Ditrigonal pyramidal
color
dana
diaphaneity
formula
Na27K8Ca12Fe3Zr6
Si4[Si3O9]4[Si9O27]46Cl2
fracture
habit
irregular grains
luster
opticalprop
refractive
nω=1.60 nε = 1.60
symmetry
system
tenacity
unit cell
a = 14.25, c = 60.97 [Å] ; Z = 3
subject
comment
La rastsvetaevite è un minerale appartenente al gruppo dell'eudialite.
@it
Rastsveatevite is a rare miner ...... rapher Ramiza K. Rastsvetaeva.
@en
label
Rastsvetaevite
@en
Rastsvetaevite
@it
wasDerivedFrom
isPrimaryTopicOf
name
Rastsvetaevite
@en