Leifite
Leifite is a rare tectosilicate. Tectosilicates are built on a framework of tetrahedra with silicon or aluminium at the centre and oxygen at the vertices; they include feldspars and zeolites, but leifite does not belong in either of these categories. It is a member of the leifite group, which includes telyushenkoite (Cs,Na,K)Na6(Be2Al3Si15O39) and eirikite KNa6Be2(Si15Al3)O39F2. Leifite was discovered in 1915, and named after Leif Ericson who was a Norse explorer who lived around 1000 AD, and was probably the first European to land in North America, nearly 500 years before Christopher Columbus. Eirikite was named in 2007 after Eirik Raude, or Erik the Red, (950–1003), who discovered Greenland and who was the father of Leif Ericson. The third mineral in the group, telyushenkoite, was discov
primaryTopic
Leifite
Leifite is a rare tectosilicate. Tectosilicates are built on a framework of tetrahedra with silicon or aluminium at the centre and oxygen at the vertices; they include feldspars and zeolites, but leifite does not belong in either of these categories. It is a member of the leifite group, which includes telyushenkoite (Cs,Na,K)Na6(Be2Al3Si15O39) and eirikite KNa6Be2(Si15Al3)O39F2. Leifite was discovered in 1915, and named after Leif Ericson who was a Norse explorer who lived around 1000 AD, and was probably the first European to land in North America, nearly 500 years before Christopher Columbus. Eirikite was named in 2007 after Eirik Raude, or Erik the Red, (950–1003), who discovered Greenland and who was the father of Leif Ericson. The third mineral in the group, telyushenkoite, was discov
has abstract
La leifite est une espèce miné ...... , Fe, Mn, Zn, Mg, K, et d'eau.
@fr
La leifite è un minerale appartenente al gruppo dei tettosilicati.
@it
Leifiet is een kleurloos miner ...... ling Na2(Si,Al,Be)7(O,OH,F)14.
@nl
Leifite is a rare tectosilicat ...... or of geology in Turkmenistan.
@en
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Wikipage page ID
43,654,276
Wikipage revision ID
733,781,259
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Caption
Leifite from Mont Saint-Hilaire, Canada
category
Silicate mineral
cleavage
Distinct on {100}
colour
white, colourless to pale violet
dana
diaphaneity
Transparent to translucent
formula
fracture
Uneven to splintery
gravity
habit
Typically radiating aggregates of fine needles
lustre
Silky to vitreous
molweight
opticalprop
refractive
nω = 1.516 and nε = 1.520.
symmetry
system
Hexagonal scalenohedral class
tenacity
hypernym
comment
La leifite est une espèce miné ...... , Fe, Mn, Zn, Mg, K, et d'eau.
@fr
La leifite è un minerale appartenente al gruppo dei tettosilicati.
@it
Leifiet is een kleurloos miner ...... ling Na2(Si,Al,Be)7(O,OH,F)14.
@nl
Leifite is a rare tectosilicat ...... up, telyushenkoite, was discov
@en
label
Leifiet
@nl
Leifite
@en
Leifite
@fr
Leifite
@it
wasDerivedFrom
isPrimaryTopicOf
name
Leifite
@en