Realgar

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Realgar topic overview

The analysis highlights Applications and Measurement as prominent areas in the source structure around Realgar.

Related topics: 22
Source areas: 4
Connected nodes: 26
Extracted relationships: 77
Concept neighborhoods: 8
Bridge connections: 26

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.

Uses · 9 topics

Occurrence · 8 topics

Overview · 4 topics

Gallery · 1 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: 40°
Birefringence: δ = 0.166
Category: Sulfide mineral
Cleavage: Good on {010}; less so on {101}, {100}, {120}, and {110}
Color: Red to yellow-orange; in polished section, pale gray, with abundant yellow to red internal reflections
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.

Gallery

Unit cell Crystal structure

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 Realgar connects Entity context

The extracted context around Realgar shows recurring relationship patterns in the source. For example, Realgar → Bradley, China, Chinese, Clarendon Press, Craigie, Historical Principles, III, In Sir James, IV, Mesny's Chinese Miscellany, Murray, New English Dictionary, Notes, Oxford, Shanghai, Text Book, Vol, William Mesny Another extracted example is Realgar → Adam Peak, As4S4, Getchell Mine, Humboldt County, La Libertad, Nevada, Peru, Potosi District, Quiruvilca Mine, The, United StatesCherry-red. Use these groups to spot repeated connection types before inspecting the individual relationships.

Top relations

related to Further reading · 18

Realgar → Bradley, China, Chinese, Clarendon Press, Craigie, Historical Principles, III, In Sir James, IV, Mesny's Chinese Miscellany, Murray, New English Dictionary, Notes, Oxford, Shanghai, Text Book, Vol, William Mesny

related to Gallery · 11

Realgar → Adam Peak, As4S4, Getchell Mine, Humboldt County, La Libertad, Nevada, Peru, Potosi District, Quiruvilca Mine, The, United StatesCherry-red

related to Occurrence · 11

Realgar → Bohemia, Hungary, In, It, Manhattan, Mercur, Nevada, Saxony, US, Utah, Yellowstone National Park

see also · 4

Realgar → Chinese, Classification, Earth, Xionghuang

related to Uses · 3

Realgar → China, Peru, Philippines

related to External links · 2

Realgar → Mindat, Pararealgar

related to Historical uses · 2

Realgar → CH3, OH

2V angle · 1

Realgar → 40°

Birefringence · 1

Realgar → δ = 0.166

Category · 1

Realgar → Sulfide mineral

Important terminology

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

Important terminology

orpiment arsenic pararealgar used also mineral chinese known crystals arsenolite yellow powder sulfide china occurs monoclinic carcinogenic mine red formula

Realgar relationships Subject–Predicate–Object triples

TTTA extracted 77 structured relationships around Realgar. Examples in this analysis include Realgar → 2V angle → 40° and Realgar → Birefringence → δ = 0.166. The table shows each extracted connection, where it came from and its confidence.

Subject	Predicate	Object	Confidence	Src
Realgar	2V angle	40°	1.00	infobox
Realgar	Birefringence	δ = 0.166	1.00	infobox
Realgar	Category	Sulfide mineral	1.00	infobox
Realgar	Cleavage	Good on {010}; less so on {101}, {100}, {120}, and {110}	1.00	infobox
Realgar	Color	Red to yellow-orange; in polished section, pale gray, with abundant yellow to red internal reflections	1.00	infobox
Realgar	Crystal class	Prismatic (2/m) (same H-M symbol)	1.00	infobox
Realgar	Crystal habit	Prismatic striated crystals; more commonly massive, coarse to fine granular, or as incrustations	1.00	infobox
Realgar	Crystal system	Monoclinic	1.00	infobox
Realgar	Diaphaneity	Transparent	1.00	infobox
Realgar	Dispersion	r > v, very strong	1.00	infobox
Realgar	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
Realgar	IMA symbol	Rlg	1.00	infobox
Realgar	Luster	Resinous to greasy	1.00	infobox
Realgar	Mohs scale hardness	1.5–2	1.00	infobox
Realgar	Optical properties	Biaxial (−)	1.00	infobox
Realgar	Other characteristics	Toxic and carcinogenic. Disintegrates on long exposure to light to a powder composed of pararealgar or arsenolite and orpiment.	1.00	infobox
Realgar	Pleochroism	Nearly colorless to pale golden yellow	1.00	infobox
Realgar	Refractive index	nα = 2.538 nβ = 2.684 nγ = 2.704	1.00	infobox
Realgar	Space group	P21/n (no. 14)	1.00	infobox
Realgar	Specific gravity	3.56	1.00	infobox
Realgar	Streak	Red-orange to red	1.00	infobox
Realgar	Strunz classification	2.FA.15a	1.00	infobox
Realgar	Tenacity	Sectile, slightly brittle	1.00	infobox
Realgar	Twinning	Contact twins on {100}	1.00	infobox
Realgar	Unit cell	a = 9.325(3) Å b = 13.571(5) Å c = 6.587(3) Å β = 106.43°; Z = 16	1.00	infobox

Related concept clusters Concept neighborhoods

The concept neighborhoods around Realgar bring nearby vocabulary together. In this analysis, examples include Mineral, Used and As4s4. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

Realgar
- Mineral
- Used
- As4s4
- Classification
- County
- Formula
- Mine
- Red
- Sulfide
- China
- Crystals
- Yellow
realgar
- Mineral
- Used
- As4s4
- Classification
- County
- Formula
- Mine
- Red
- Sulfide
- China
- Crystals
- Yellow
uses
- As4s4
- Classification
- County
- Crystal
- Formula
- Historical
- Monoclinic
- Prismatic
- References
- Us
- Mine
- Sulfide
unit cell
- Unit
- Crystals
- Carcinogenic
- Classification
- Color
- County
- Crystal
- Granular
- Prismatic
- Mine
- Red
- Yellow
arsenic blende
- Mineral
- Known
- Realgar
- Chemical
- Color
- Flame
- Formula
- Blood
- Bull's
- Sulfide
- China
- Occurs
arsenic
- Mineral
- Known
- Realgar
- Chemical
- Color
- Flame
- Formula
- Blood
- Bull's
- Sulfide
- China
- Occurs
orpiment
- Powder
- References
- Realgar
- Red
- Sulfide
- Occurs
- Pararealgar
- Yellow
- Chinese
- Used
arsenolite
- Association
- Carcinogenic
- Orpiment
- References
- Mine
- Powder
- Occurs
- Pararealgar

Connections between topic areas Semantic bridges

For Realgar, one of the stronger structural bridges in this analysis connects Realgar with Uses. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.

Min side: 3

Realgar — Uses · splits 17 ⟂ 10

Realgar — Occurrence · splits 18 ⟂ 9

Realgar — Overview · splits 22 ⟂ 5

Map overview Semantic statistics

Realgar

Nodes27

Edges26

Triples77

Avg. degree1.93

Density0.074074

Components1

Source & methodology

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

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