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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…

Occurrence, Structure & Appearance

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Topic orientation

Leifite at a glance

The strongest research directions include Occurrence and Structure. Use the connected concepts below as starting points, not as a keyword checklist.

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Explore the main themes, entities and connections around Leifite. Start with the topic map, then use the sections below for research and deeper semantic analysis.

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Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

Birefringence
δ = 0. 011
Category
Silicate mineral
Cleavage
Distinct on {1010}
Colour
white, colourless to pale violet
Crystal class
Hexagonal scalenohedral (3m) H-M symbol: (3 2/m)
Crystal habit
Typically radiating aggregates of fine needles

Topics to explore

A structured outline of related entities, concepts and subtopics. Open any item to build a new map centered on it.

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Overview

Structure

Appearance

Physical Properties

Optical Properties

Occurrence

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

How this topic connects Entity context

Quick relationship hints grouped by predicate. Useful for spotting recurring semantic connections around the current entity.

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Leifite

Top relations

related to Occurrence · 22
Leifite → At Mont Saint-Hilaire, Copenhagen, Denmark, Greenland, Igaliku, In Greenland, In Norway, In Russia, Kujalleq, Langesundsfjord District, Lovozero Massif, Narsaarsuk, Narsaarsuk Plateau, Narsaq, National Museum, Natural History, Oslo Region, The, University, US
related to Structure · 5
Leifite → It, OH, P3m1, Tetrahedrons, There
related to Appearance · 2
Leifite → Individual, It
Birefringence · 1
Leifite → δ = 0. 011
Category · 1
Leifite → Silicate mineral
Cleavage · 1
Leifite → Distinct on {1010}
Colour · 1
Leifite → white, colourless to pale violet
Crystal class · 1
Leifite → Hexagonal scalenohedral (3m) H-M symbol: (3 2/m)
Crystal habit · 1
Leifite → Typically radiating aggregates of fine needles
Crystal system · 1
Leifite → Trigonal

Important terminology Word statistics

Frequent words and multi-word phrases across the lead, headings, infobox and body. Useful for terminology coverage.

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Important terminology

group occurs discovered named leif mineral greenland telyushenkoite eirikite aggregates ericson pegmatite silicon aluminium oxygen zeolites white colourless radiating feldspars

Entity relationships Subject–Predicate–Object triples

Extracted RDF-like relationships with confidence and source. The table includes structured facts and lower-confidence contextual relations.
SubjectPredicateObjectConfidenceSrc
LeifiteBirefringenceδ = 0. 0111.00infobox
LeifiteCategorySilicate mineral1.00infobox
LeifiteCleavageDistinct on {1010}1.00infobox
LeifiteColourwhite, colourless to pale violet1.00infobox
LeifiteCrystal classHexagonal scalenohedral (3m) H-M symbol: (3 2/m)1.00infobox
LeifiteCrystal habitTypically radiating aggregates of fine needles1.00infobox
LeifiteCrystal systemTrigonal1.00infobox
LeifiteDana classification78.07.10.011.00infobox
LeifiteDiaphaneityTransparent to translucent1.00infobox
LeifiteFormula.mw-parser-output .template-chem2-su{display:inline-block;font-size:80%;line-height:1;vertical-align:-0.35em}.mw-parser-output .template-chem2-su>span{display:block;text-align:l…1.00infobox
LeifiteFormula mass425.47 g/mol1.00infobox
LeifiteFractureUneven to splintery1.00infobox
LeifiteIMA symbolLf1.00infobox
LeifiteLustreSilky to vitreous1.00infobox
LeifiteMohs scale hardness61.00infobox
LeifiteOptical propertiesUniaxial (+)1.00infobox
LeifiteRefractive indexnω = 1.516 and nε = 1.520.1.00infobox
LeifiteSpace groupP3m11.00infobox
LeifiteSpecific gravity2.61.00infobox
LeifiteStreakWhite1.00infobox
LeifiteStrunz classification9.EH.25 (10 ed) 8/J.10-10 (8 ed)1.00infobox
LeifiteTenacityBrittle1.00infobox
LeifiteTwinningNone1.00infobox
Leifiteis arare tectosilicate0.90text

Related concept clusters Concept neighborhoods

Clusters of nearby vocabulary surrounding the topic. Scan them for adjacent concepts and language you may have missed.

These clusters group vocabulary that occurs around closely connected concepts in the source material.

    Connections between topic areas Semantic bridges

    Bridge nodes connect otherwise separate parts of the map. Expand a row to inspect the topic groups on each side.

    Bridges can reveal useful research angles that are easy to miss in a flat list of related terms.

    Map overview Semantic statistics

    Number of nodes, edges, triples, density and central hubs. Use it to gauge the size and connectivity of the map.

    Leifite

    Nodes57
    Edges56
    Triples54
    Avg. degree1.96
    Density0.035088
    Components1
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