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Pigeonite is a mineral in the clinopyroxene subgroup of the pyroxene group. It has a general formula of (Ca,Mg,Fe)(Mg,Fe)Si2O6. The calcium cation fraction can vary from 5% to 25%, with iron and magnesium making up the rest of the cations.
The analysis highlights Overview, Related Topics and Entities as prominent areas in the source structure around Pigeonite.
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.
A focused starting point derived from the topic graph, ranked independently of the source article order.
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 Pigeonite shows recurring relationship patterns in the source. For example, Pigeonite → 0 – 30° measured Another extracted example is Pigeonite → δ = 0.021 – 0.030. 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.
augite mg fe clinopyroxene orthopyroxene plus igneous calcium pyroxene ca monoclinic mineral temperature evidence rocks present exsolution lamellae subgroup group
TTTA extracted 28 structured relationships around Pigeonite. Examples in this analysis include Pigeonite → 2V angle → 0 – 30° measured and Pigeonite → Birefringence → δ = 0.021 – 0.030. The table shows each extracted connection, where it came from and its confidence.
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Pigeonite | 2V angle | 0 – 30° measured | 1.00 | infobox |
| Pigeonite | Birefringence | δ = 0.021 – 0.030 | 1.00 | infobox |
| Pigeonite | Category | Inosilicate minerals (single chain) | 1.00 | infobox |
| Pigeonite | Cleavage | Good on {110}, (110) ^ (110) ~87° | 1.00 | infobox |
| Pigeonite | Color | Brown, greenish brown-black | 1.00 | infobox |
| Pigeonite | Crystal class | Prismatic (2/m) (same H-M symbol) | 1.00 | infobox |
| Pigeonite | Crystal habit | Prismatic crystals, to 1 cm; granular, massive. | 1.00 | infobox |
| Pigeonite | Crystal system | Monoclinic | 1.00 | infobox |
| Pigeonite | Dana classification | 65.01.01.04 | 1.00 | infobox |
| Pigeonite | Diaphaneity | Semitransparent | 1.00 | infobox |
| Pigeonite | Dispersion | weak to distinct | 1.00 | infobox |
| Pigeonite | Formula | .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… | 1.00 | infobox |
| Pigeonite | Fracture | Conchoidal | 1.00 | infobox |
| Pigeonite | Group | Pyroxene group, clinopyroxene subgroup | 1.00 | infobox |
| Pigeonite | IMA symbol | Pgt | 1.00 | infobox |
| Pigeonite | Luster | Vitreous to dull | 1.00 | infobox |
| Pigeonite | Mohs scale hardness | 6 | 1.00 | infobox |
| Pigeonite | Optical properties | Biaxial (+) | 1.00 | infobox |
| Pigeonite | Pleochroism | Weak to moderate; X = colorless, pale green, brown; Y = pale brown, pale brownish green, brownish pink; Z = colorless, pale green, pale yellow | 1.00 | infobox |
| Pigeonite | Refractive index | nα = 1.683 – 1.722 nβ = 1.684 - 1.722 nγ = 1.704 – 1.752 | 1.00 | infobox |
| Pigeonite | Space group | P21/c | 1.00 | infobox |
| Pigeonite | Specific gravity | 3.17 – 3.46 measured | 1.00 | infobox |
| Pigeonite | Streak | Grey white | 1.00 | infobox |
| Pigeonite | Strunz classification | 9.DA.10 | 1.00 | infobox |
| Pigeonite | Tenacity | Brittle | 1.00 | infobox |
| Pigeonite | Twinning | Commonly twinned simply or multiply on {100} or {001} | 1.00 | infobox |
| Pigeonite | Unit cell | a = 9.7, b = 8.95, c = 5.24 [Å]; β = 108.59°; Z = 4 | 1.00 | infobox |
| Pigeonite | is a | mineral in the clinopyroxene subgroup of the pyroxene group | 0.90 | text |
The concept neighborhoods around Pigeonite bring nearby vocabulary together. In this analysis, examples include Igneous, Augite and Crystallization. Use the clusters to find adjacent concepts and terminology that may deserve separate research.
Bridges highlight paths between different parts of the Pigeonite map and can reveal research angles that are easy to miss in a flat list.
TTTA analyzes the structure around Pigeonite 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 — Pigeonite · EN edition · Analysis: TopicsToTalkAbout