Allanite

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Allanite topic overview

The analysis highlights Art and Overview as prominent areas in the source structure around Allanite.

Related topics: 26
Source areas: 1
Connected nodes: 27
Extracted relationships: 27
Concept neighborhoods: 12
Bridge connections: 27

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 · 26 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: 40° to 80°
Birefringence: δ = 0.018–0.031
Category: Sorosilicates
Cleavage: Imperfect to poor
Color: Brown to black
Crystal class: Prismatic (2/m) (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

Sorosilicate Silicate minerals
Epidote
Rare-earth elements Rare-earth element
Metamorphosed
Felsic
Igneous
Cations
Rare-earth elements
International Mineralogical Association
Cerium
Lanthanum
Neodymium
Yttrium
Thorium
Pleochroic halo
Metamict
Limonite
Monoclinic
Mohs hardness
Specific gravity
Pyrognomic
Scottish Scottish people
Thomas Allan Thomas Allan (mineralogist)
Aluk Island
Greenland
Karl Ludwig Giesecke

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 Allanite connects Entity context

The extracted context around Allanite shows recurring relationship patterns in the source. For example, Allanite → Measured: 40° to 80° Another extracted example is Allanite → δ = 0.018–0.031. Use these groups to spot repeated connection types before inspecting the individual relationships.

Top relations

2V angle · 1

Allanite → Measured: 40° to 80°

Birefringence · 1

Allanite → δ = 0.018–0.031

Category · 1

Allanite → Sorosilicates

Cleavage · 1

Allanite → Imperfect to poor

Color · 1

Allanite → Brown to black

Crystal class · 1

Allanite → Prismatic (2/m) (same H-M symbol)

Crystal habit · 1

Allanite → Crystals tabular, prismatic to acicular; granular, massive; commonly metamict

Crystal system · 1

Allanite → Monoclinic

Diaphaneity · 1

Allanite → Translucent to opaque

Dispersion · 1

Allanite → r v; strong

Important terminology

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

Important terminology

elements also minerals rare-earth mineral often radioactive group ce monoclinic contain amount large others present radiation grains discovered metamict formula

Allanite relationships Subject–Predicate–Object triples

TTTA extracted 27 structured relationships around Allanite. Examples in this analysis include Allanite → 2V angle → Measured: 40° to 80° and Allanite → Birefringence → δ = 0.018–0.031. The table shows each extracted connection, where it came from and its confidence.

Subject	Predicate	Object	Confidence	Src
Allanite	2V angle	Measured: 40° to 80°	1.00	infobox
Allanite	Birefringence	δ = 0.018–0.031	1.00	infobox
Allanite	Category	Sorosilicates	1.00	infobox
Allanite	Cleavage	Imperfect to poor	1.00	infobox
Allanite	Color	Brown to black	1.00	infobox
Allanite	Crystal class	Prismatic (2/m) (same H-M symbol)	1.00	infobox
Allanite	Crystal habit	Crystals tabular, prismatic to acicular; granular, massive; commonly metamict	1.00	infobox
Allanite	Crystal system	Monoclinic	1.00	infobox
Allanite	Diaphaneity	Translucent to opaque	1.00	infobox
Allanite	Dispersion	r > v; strong	1.00	infobox
Allanite	Formula	(Ce,Ca,Y,La)2(Al,Fe+3)3(SiO4)3(OH)	1.00	infobox
Allanite	Fracture	Conchoidal to uneven	1.00	infobox
Allanite	IMA symbol	Aln	1.00	infobox
Allanite	Luster	Vitreous, resinous to submetallic	1.00	infobox
Allanite	Mohs scale hardness	5.5–6	1.00	infobox
Allanite	Optical properties	Biaxial (−)	1.00	infobox
Allanite	Other characteristics	Radioactive if uranium and/or thorium-rich	1.00	infobox
Allanite	Pleochroism	X = pale olive-green, reddish brown; Y = dark brown, brownish yellow; Z = dark reddish brown, greenish brown	1.00	infobox
Allanite	Refractive index	nα = 1.715–1.791, nβ = 1.718–1.815, nγ = 1.733–1.822	1.00	infobox
Allanite	Space group	P21/m	1.00	infobox
Allanite	Specific gravity	3.5–4.2	1.00	infobox
Allanite	Streak	Grey	1.00	infobox
Allanite	Strunz classification	9.BG.05b	1.00	infobox
Allanite	Tenacity	Brittle	1.00	infobox
Allanite	Twinning	Polysynthetic, common on {100}	1.00	infobox
Allanite	Unit cell	a = 8.927, b = 5.761 c = 10.15 [Å]; β = 114.77°; Z = 2	1.00	infobox

Related concept clusters Concept neighborhoods

The concept neighborhoods around Allanite bring nearby vocabulary together. In this analysis, examples include Also, Minerals and Elements. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

Allanite
- Also
- Minerals
- Elements
- Grains
- Radiation
- Group
- Often
- Radioactive
- Rare-earth
- Epidote
- Sorosilicate
- Amount
allanite
- Also
- Minerals
- Elements
- Grains
- Radiation
- Group
- Often
- Radioactive
- Rare-earth
- Epidote
- Sorosilicate
- Amount
metamict
- Radioactive
- Black
- Brown
- Color
- Crystals
- Gravity
- Hardness
- Mohs
- Monoclinic
- Named
- Oh
- Prismatic
specific gravity
- Hardness
- Mohs
- Specific
- Color
- La
- Metamict
- Monoclinic
- Named
- Oh
- Prismatic
- References
- System
mohs hardness
- Gravity
- Mohs
- Specific
- Color
- La
- Metamict
- Monoclinic
- Named
- Oh
- Prismatic
- References
- System
rare-earth elements
- Elements
- Rare-earth
- Large
- Others
- Sorosilicate
- Formula
- Oh
- Epidote
- Present
- Group
- Mineral
- Radioactive
monoclinic
- Crystals
- Prismatic
- System
- Color
- Gravity
- Hardness
- Mohs
- Named
- Oh
- References
- Specific
- Radioactive
sorosilicate
- Epidote
- Amount
- Contain
- Group
- Rare-earth
- Also
- Minerals
- Elements
- Allanite

Connections between topic areas Semantic bridges

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

Min side: 3

Map overview Semantic statistics

Allanite

Nodes28

Edges27

Triples27

Avg. degree1.93

Density0.071429

Components1

Source & methodology

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

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