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Pentagonite: Overview, Related Topics & Entities

Pentagonite is a rare phyllosilicate mineral with formula Ca(VO)Si4O10·4H2O. Its characteristic blue color is due to the presence of the vanadyl (VO2+) cation in its crystal lattice. The oxidation state of vanadium in the vanadyl cation is +4; therefore, it is a divalent cation. It was named for the unusual twinning called a fiveling with an apparent…

Language: English [EN]
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Pentagonite topic overview

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

Related topics
16
Source areas
1
Connected nodes
17
Extracted relationships
23
Concept neighborhoods
17
Bridge connections
17

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 · 16 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.

2V angle
Measured: 50°
Birefringence
δ = 0.014
Category
Phyllosilicate minerals
Cleavage
Good on {010}
Color
Greenish blue
Crystal class
Pyramidal (mm2) (same H-M symbol)

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 Pentagonite connects Entity context

The extracted context around Pentagonite shows recurring relationship patterns in the source. For example, Pentagonite → Measured: 50° Another extracted example is Pentagonite → δ = 0.014. Use these groups to spot repeated connection types before inspecting the individual relationships.

Pentagonite

Top relations

2V angle · 1
Pentagonite → Measured: 50°
Birefringence · 1
Pentagonite → δ = 0.014
Category · 1
Pentagonite → Phyllosilicate minerals
Cleavage · 1
Pentagonite → Good on {010}
Color · 1
Pentagonite → Greenish blue
Crystal class · 1
Pentagonite → Pyramidal (mm2) (same H-M symbol)
Crystal habit · 1
Pentagonite → Prismatic crystals, often as radiating clusters
Crystal system · 1
Pentagonite → Orthorhombic
Diaphaneity · 1
Pentagonite → Transparent
Formula · 1
Pentagonite → Ca(VO)Si4O10·4H2O

Important terminology

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

Important terminology

vanadyl cavansite cation state occurs phyllosilicate formula ca vo si4o10 4h2o blue color crystal twinning symmetry references fiveling dimorph tuff

Pentagonite relationships Subject–Predicate–Object triples

TTTA extracted 23 structured relationships around Pentagonite. Examples in this analysis include Pentagonite → 2V angle → Measured: 50° and Pentagonite → Birefringence → δ = 0.014. The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
Pentagonite2V angleMeasured: 50°1.00infobox
PentagoniteBirefringenceδ = 0.0141.00infobox
PentagoniteCategoryPhyllosilicate minerals1.00infobox
PentagoniteCleavageGood on {010}1.00infobox
PentagoniteColorGreenish blue1.00infobox
PentagoniteCrystal classPyramidal (mm2) (same H-M symbol)1.00infobox
PentagoniteCrystal habitPrismatic crystals, often as radiating clusters1.00infobox
PentagoniteCrystal systemOrthorhombic1.00infobox
PentagoniteDiaphaneityTransparent1.00infobox
PentagoniteFormulaCa(VO)Si4O10·4H2O1.00infobox
PentagoniteIMA symbolPtg1.00infobox
PentagoniteLusterVitreous1.00infobox
PentagoniteMohs scale hardness3 - 41.00infobox
PentagoniteOptical propertiesBiaxial (-)1.00infobox
PentagonitePleochroismVisible: X=Z= colorless Y= blue1.00infobox
PentagoniteRefractive indexnα = 1.533 nβ = 1.544 nγ = 1.5471.00infobox
PentagoniteSpace groupCcm211.00infobox
PentagoniteSpecific gravity2.331.00infobox
PentagoniteStrunz classification9.EA.551.00infobox
PentagoniteTenacityBrittle1.00infobox
PentagoniteTwinningMultiple twins producing a pseudo-pentagonal symmetry1.00infobox
PentagoniteUnit cella = 10.386(4) Å, b = 14.046(7) Å, c = 8.975(2) Å; Z = 41.00infobox
Pentagoniteis arare phyllosilicate mineral with formula Ca0.90text

Related concept clusters Concept neighborhoods

The concept neighborhoods around Pentagonite bring nearby vocabulary together. In this analysis, examples include Mineral, Rare and 4h2o. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • crystal lattice
    • Display
    • Due
    • Font-size
    • Inline-block
    • Line-height
    • Mw-parser-output
    • Presence
    • References
    • Template-chem2-su
    • Vertical-align
    • Formula
    • Phyllosilicate
  • phyllosilicate mineral
    • Rare
    • Si4o10
    • Vo
    • 4h2o
    • Ca
    • Formula
    • Pentagonite
    • Phyllosilicate
    • References
    • Blue
    • Color
    • Crystal
  • Pentagonite
    • Mineral
    • Rare
    • 4h2o
    • Ca
    • Formula
    • Phyllosilicate
    • Si4o10
    • State
    • Vo
  • pentagonite
    • Mineral
    • Rare
    • 4h2o
    • Ca
    • Formula
    • Phyllosilicate
    • Si4o10
    • State
    • Vo
  • cavansite
    • Analcime
    • Apophyllite
    • Calcite
    • Dimorph
    • Heulandite
    • Stilbite
    • Occurs
  • stilbite
    • Analcime
    • Apophyllite
    • Calcite
    • Heulandite
    • Cavansite
    • Occurs
  • analcime
    • Apophyllite
    • Calcite
    • Heulandite
    • Stilbite
    • Cavansite
    • Occurs
  • heulandite
    • Analcime
    • Apophyllite
    • Calcite
    • Stilbite
    • Occurs

Connections between topic areas Semantic bridges

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

Min side: 3

Map overview Semantic statistics

Pentagonite

Nodes18
Edges17
Triples23
Avg. degree1.89
Density0.111111
Components1

Source & methodology

TTTA analyzes the structure around Pentagonite 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 — Pentagonite · EN edition · Analysis: TopicsToTalkAbout

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