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Allophane: Overview, Related Topics & Entities

Allophane is an amorphous to poorly crystalline hydrous aluminium silicate clay mineraloid. Its chemical formula is Al2O3·(SiO2)1.3-2·(2.5-3)H2O. Since it has short-range atomic order, it is a mineraloid, rather than a mineral, and can be identified by its distinctive infrared spectrum and its X-ray diffraction pattern. It was first described in 1816 in…

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Allophane topic overview

The analysis highlights Overview, Related Topics and Entities as prominent areas in the source structure around Allophane.

Related topics
22
Source areas
1
Connected nodes
23
Extracted relationships
29
Concept neighborhoods
19
Bridge connections
23

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.

Overview · 22 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
Phyllosilicate minerals
Cleavage
None
Color
White, pale blue to sky-blue, green, brown, yellow
Crystal habit
Crusts and masses
Crystal system
Amorphous
Diaphaneity
Transparent, translucent

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

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 Allophane connects Entity context

The extracted context around Allophane shows recurring relationship patterns in the source. For example, Allophane → America, Australian Journal, Imogolite, MineralogyWada, Minerals, New Zealand, Parfitt, Review, Soil Environments, Soil Research, Soil Science Society, Webmineral Another extracted example is Allophane → amorphous to poorly crystalline hydrous aluminium silicate clay mineraloid, weathering or hydrothermal alteration product of volcanic glass and feldspars and sometimes has a composition similar to kaolinite but generally has a molar ratio of Al. Use these groups to spot repeated connection types before inspecting the individual relationships.

Allophane

Top relations

related to References · 12
Allophane → America, Australian Journal, Imogolite, MineralogyWada, Minerals, New Zealand, Parfitt, Review, Soil Environments, Soil Research, Soil Science Society, Webmineral
is a · 2
Allophane → amorphous to poorly crystalline hydrous aluminium silicate clay mineraloid, weathering or hydrothermal alteration product of volcanic glass and feldspars and sometimes has a composition similar to kaolinite but generally has a molar ratio of Al
Category · 1
Allophane → Phyllosilicate minerals
Cleavage · 1
Allophane → None
Color · 1
Allophane → White, pale blue to sky-blue, green, brown, yellow
Crystal habit · 1
Allophane → Crusts and masses
Crystal system · 1
Allophane → Amorphous
Diaphaneity · 1
Allophane → Transparent, translucent
Formula · 1
Allophane → Al2O3·(SiO2)1.3-2·(2.5-3)H2O
Fracture · 1
Allophane → Conchoidal

Important terminology

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

Important terminology

clay mineraloid minerals similar generally forms amorphous formula al2o3 sio2 3-2 5-3 h2o waxy masses color white green blue yellow

Allophane relationships Subject–Predicate–Object triples

TTTA extracted 29 structured relationships around Allophane. Examples in this analysis include Allophane → Category → Phyllosilicate minerals and Allophane → Cleavage → None. The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
AllophaneCategoryPhyllosilicate minerals1.00infobox
AllophaneCleavageNone1.00infobox
AllophaneColorWhite, pale blue to sky-blue, green, brown, yellow1.00infobox
AllophaneCrystal habitCrusts and masses1.00infobox
AllophaneCrystal systemAmorphous1.00infobox
AllophaneDiaphaneityTransparent, translucent1.00infobox
AllophaneFormulaAl2O3·(SiO2)1.3-2·(2.5-3)H2O1.00infobox
AllophaneFractureConchoidal1.00infobox
AllophaneIMA symbolAlp1.00infobox
AllophaneLusterWaxy to earthy1.00infobox
AllophaneMohs scale hardness31.00infobox
AllophaneSpecific gravity2.81.00infobox
AllophaneStreakWhite1.00infobox
AllophaneStrunz classification9.ED.201.00infobox
AllophaneTenacityBrittle1.00infobox
Allophaneis aamorphous to poorly crystalline hydrous aluminium silicate clay mineraloid0.90text
Allophaneis aweathering or hydrothermal alteration product of volcanic glass and feldspars and sometimes has a composition similar to kaolinite but generally has a molar ratio of Al0.90text

Related concept clusters Concept neighborhoods

The concept neighborhoods around Allophane bring nearby vocabulary together. In this analysis, examples include Amorphous, Aluminium and Feldspars. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • Allophane
    • Amorphous
    • Aluminium
    • Feldspars
    • Gibbsite
    • Halloysite
    • Kaolinite
    • Poorly
    • Silicate
    • Weathering
    • Blue
    • Brown
    • Clay
  • allophane
    • Amorphous
    • Aluminium
    • Feldspars
    • Gibbsite
    • Halloysite
    • Kaolinite
    • Poorly
    • Silicate
    • Weathering
    • Blue
    • Brown
    • Clay
  • amorphous
    • Aluminium
    • Poorly
    • Silicate
    • Al2o3
    • Blue
    • Brown
    • Clay
    • Color
    • Formula
    • Gravity
    • Green
    • H2o
  • clay minerals
    • Poorly
    • Silicate
    • Blue
    • Brown
    • Color
    • Gravity
    • Green
    • Hardness
    • Masses
    • Mineraloid
    • Minerals
    • Mohs
  • specific gravity
    • Hardness
    • Mohs
    • Specific
    • Green
    • H2o
    • Masses
    • Minerals
    • Pp
    • Sio2
    • Soil
    • Waxy
    • White
  • mohs hardness
    • Gravity
    • Mohs
    • Specific
    • Masses
    • Minerals
    • Pp
    • Sio2
    • Soil
    • Waxy
    • White
    • Yellow
  • silicate
    • Aluminium
    • Poorly
    • Amorphous
    • Clay
    • Mineraloid
    • Allophane
  • aluminium
    • Poorly
    • Silicate
    • Amorphous
    • Clay
    • Mineraloid

Connections between topic areas Semantic bridges

Bridges highlight paths between different parts of the Allophane map and can reveal research angles that are easy to miss in a flat list.

Min side: 3

Map overview Semantic statistics

Allophane

Nodes24
Edges23
Triples29
Avg. degree1.92
Density0.083333
Components1

Source & methodology

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

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

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