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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…
The analysis highlights Overview, Related Topics and Entities as prominent areas in the source structure around Allophane.
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.
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.
High-confidence facts extracted from structured source data. Use them as anchors for further research.
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.
Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.
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.
Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.
clay mineraloid minerals similar generally forms amorphous formula al2o3 sio2 3-2 5-3 h2o waxy masses color white green blue yellow
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.
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Allophane | Category | Phyllosilicate minerals | 1.00 | infobox |
| Allophane | Cleavage | None | 1.00 | infobox |
| Allophane | Color | White, pale blue to sky-blue, green, brown, yellow | 1.00 | infobox |
| Allophane | Crystal habit | Crusts and masses | 1.00 | infobox |
| Allophane | Crystal system | Amorphous | 1.00 | infobox |
| Allophane | Diaphaneity | Transparent, translucent | 1.00 | infobox |
| Allophane | Formula | Al2O3·(SiO2)1.3-2·(2.5-3)H2O | 1.00 | infobox |
| Allophane | Fracture | Conchoidal | 1.00 | infobox |
| Allophane | IMA symbol | Alp | 1.00 | infobox |
| Allophane | Luster | Waxy to earthy | 1.00 | infobox |
| Allophane | Mohs scale hardness | 3 | 1.00 | infobox |
| Allophane | Specific gravity | 2.8 | 1.00 | infobox |
| Allophane | Streak | White | 1.00 | infobox |
| Allophane | Strunz classification | 9.ED.20 | 1.00 | infobox |
| Allophane | Tenacity | Brittle | 1.00 | infobox |
| Allophane | is a | amorphous to poorly crystalline hydrous aluminium silicate clay mineraloid | 0.90 | text |
| Allophane | is a | 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 | 0.90 | text |
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.
Bridges highlight paths between different parts of the Allophane map and can reveal research angles that are easy to miss in a flat list.
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