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Cordierite: Applications & Standards

Cordierite (mineralogy) or iolite (gemology) is a magnesium iron aluminium cyclosilicate. Iron is almost always present, and a solid solution exists between Mg-rich cordierite and Fe-rich sekaninaite with a series formula: (Mg,Fe)2Al3(Si5AlO18) to (Fe,Mg)2Al3(Si5AlO18). A high-temperature polymorph exists, indialite, which is isostructural with beryl and…

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Cordierite topic overview

The analysis highlights Applications and Standards as prominent areas in the source structure around Cordierite.

Related topics
51
Source areas
6
Connected nodes
57
Extracted relationships
70
Concept neighborhoods
16
Bridge connections
57

What this topic covers Research coverage

Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.

Occurrence · 19 topics
Overview · 13 topics
Gem variety · 8 topics
Applications · 5 topics
Name and discovery · 4 topics
Commercial use · 2 topics

Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.

Key facts & relationships

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

Category
Cyclosilicate
Cleavage
Fair on {100}, poor on {001} and {010}
Color
Blue, smoky blue, bluish violet; greenish, yellowish brown, gray; colorless to very pale blue in thin section in transmitted light
Crystal class
Dipyramidal (mmm) H-M symbol: (2/m 2/m 2/m)
Crystal habit
Pseudo-hexagonal prismatic twins, as imbedded grains, and massive
Crystal system
Orthorhombic

Explore all related topics Closing gaps

Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.

Overview

Name and discovery

Occurrence

Commercial use

Gem variety

Applications

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 Cordierite connects Entity context

The extracted context around Cordierite shows recurring relationship patterns in the source. For example, Cordierite → Another, As, Australia, Brazil, Burma, Canada, Connecticut, Gem, Greek, India, Iolite, It, Light, Madagascar, Namibia, Northern Territory, Northwest Territories, Sri Lanka, Tanzania, The Another extracted example is Cordierite → Alteration, Cornwall, Geevor Tin Mine, It, Other, Two. Use these groups to spot repeated connection types before inspecting the individual relationships.

Cordierite

Top relations

related to Gem variety · 27
Cordierite → Another, As, Australia, Brazil, Burma, Canada, Connecticut, Gem, Greek, India, Iolite, It, Light, Madagascar, Namibia, Northern Territory, Northwest Territories, Sri Lanka, Tanzania, The
related to Occurrence · 6
Cordierite → Alteration, Cornwall, Geevor Tin Mine, It, Other, Two
related to Name and discovery · 5
Cordierite → Almería, French, Louis Cordier, Níjar, Spain
related to Commercial use · 3
Cordierite → Catalytic, The, This
has application · 2
Cordierite → In, It
Category · 1
Cordierite → Cyclosilicate
Cleavage · 1
Cordierite → Fair on {100}, poor on {001} and {010}
Color · 1
Cordierite → Blue, smoky blue, bluish violet; greenish, yellowish brown, gray; colorless to very pale blue in thin section in transmitted light
Crystal class · 1
Cordierite → Dipyramidal (mmm) H-M symbol: (2/m 2/m 2/m)
Crystal habit · 1
Cordierite → Pseudo-hexagonal prismatic twins, as imbedded grains, and massive

Important terminology

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

iolite used also pleochroism catalytic converters blue violet quartz name iron cyclosilicate thermal exists gemstone mg fe variety applications light

Cordierite relationships Subject–Predicate–Object triples

TTTA extracted 70 structured relationships around Cordierite. Examples in this analysis include Cordierite → Category → Cyclosilicate and Cordierite → Cleavage → Fair on {100}, poor on {001} and {010}. The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
CordieriteCategoryCyclosilicate1.00infobox
CordieriteCleavageFair on {100}, poor on {001} and {010}1.00infobox
CordieriteColorBlue, smoky blue, bluish violet; greenish, yellowish brown, gray; colorless to very pale blue in thin section in transmitted light1.00infobox
CordieriteCrystal classDipyramidal (mmm) H-M symbol: (2/m 2/m 2/m)1.00infobox
CordieriteCrystal habitPseudo-hexagonal prismatic twins, as imbedded grains, and massive1.00infobox
CordieriteCrystal systemOrthorhombic1.00infobox
CordieriteDana classification61.02.01.01 Cordierite group1.00infobox
CordieriteDiagnostic featuresResembles quartz, can be distinguished by pleochroism. Can be distinguished from corundum by its lower hardness1.00infobox
CordieriteDiaphaneityTransparent to translucent1.00infobox
CordieriteFormula.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
CordieriteFractureSubconchoidal1.00infobox
CordieriteFusibilityon thin edges1.00infobox
CordieriteIMA symbolCrd1.00infobox
CordieriteLusterGreasy or vitreous1.00infobox
CordieriteMohs scale hardness7–7.51.00infobox
CordieriteOptical propertiesUsually optically (-), sometimes (+); 2V = 0–90°1.00infobox
CordieritePleochroismX = pale yellow, green; Y = violet, blue-violet; Z = pale blue1.00infobox
CordieriteRefractive indexnα = 1.527 – 1.560 nβ = 1.532 – 1.574 nγ = 1.538 – 1.578 Indices increase with Fe content.1.00infobox
CordieriteSpace groupCccm1.00infobox
CordieriteSpecific gravity2.57–2.661.00infobox
CordieriteStreakWhite1.00infobox
CordieriteStrunz classification9.CJ.101.00infobox
CordieriteTenacityBrittle1.00infobox
CordieriteTwinningCommon on {110}, {130}, simple, lamellar, cyclical1.00infobox
CordieriteUnit cella = 17.079 Å, b = 9.730 Å, c = 9.356 Å; Z = 41.00infobox

Related concept clusters Concept neighborhoods

The concept neighborhoods around Cordierite bring nearby vocabulary together. In this analysis, examples include Occurs, Converters and Thermal. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • Cordierite
    • Occurs
    • Converters
    • Thermal
    • Also
    • Catalytic
    • Used
    • Applications
    • Cyclosilicate
    • Fe
    • Formula
    • Hardness
    • Iron
  • cordierite
    • Occurs
    • Converters
    • Thermal
    • Also
    • Catalytic
    • Used
    • Applications
    • Cyclosilicate
    • Fe
    • Formula
    • Hardness
    • Iron
  • applications
    • Cyclosilicate
    • Fe
    • Formula
    • Gem
    • Hardness
    • Mg
    • Pale
    • References
    • Temperature
    • Thin
    • Use
    • Common
  • cyclosilicate
    • Applications
    • Fe
    • Formula
    • Gem
    • Hardness
    • Iron
    • Mg
    • Pale
    • References
    • Thin
    • Use
    • Common
  • fe
    • Formula
    • Mg
    • Applications
    • Gem
    • Hardness
    • Iron
    • Pale
    • References
    • Thin
    • Use
    • Common
    • Light
  • name and discovery
    • Another
    • Blue
    • Pleochroism
    • Violet
    • Gem
    • Gemstone
    • Hardness
    • Mg
    • Pale
    • References
    • Thin
    • Use
  • gem variety
    • Light
    • Blue
    • Violet
    • Hardness
    • Mg
    • Pale
    • References
    • Thin
    • Use
    • Common
    • Gemstone
    • Variety
  • mg
    • Hardness
    • Pale
    • References
    • Thin
    • Use
    • Common
    • Light
    • Variety
    • Blue
    • Name
    • Violet

Connections between topic areas Semantic bridges

For Cordierite, one of the stronger structural bridges in this analysis connects Cordierite with Occurrence. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.

Min side: 3
CordieriteOccurrence · splits 38 ⟂ 20
CordieriteOverview · splits 44 ⟂ 14
CordieriteGem variety · splits 49 ⟂ 9
CordieriteApplications · splits 52 ⟂ 6
CordieriteName and discovery · splits 53 ⟂ 5
CordieriteCommercial use · splits 55 ⟂ 3

Map overview Semantic statistics

Cordierite

Nodes58
Edges57
Triples70
Avg. degree1.97
Density0.034483
Components1

Source & methodology

TTTA analyzes the structure around Cordierite to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as Applications & Standards, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — Cordierite · EN edition · Analysis: TopicsToTalkAbout

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