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Köttigite: Occurrence and associations, Overview & Structure

Köttigite is a rare hydrated zinc arsenate which was discovered in 1849 and named by James Dwight Dana in 1850 in honour of Otto Friedrich Köttig (1824–1892), a German chemist from Schneeberg, Saxony, who made the first chemical analysis of the mineral. It has the formula Zn3(AsO4)2·8H2O and it is a dimorph of metaköttigite, which means that the two…

Language: English [EN]
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Köttigite topic overview

The analysis highlights Occurrence and associations, Overview and Structure as prominent areas in the source structure around Köttigite.

Related topics
71
Source areas
6
Connected nodes
77
Extracted relationships
69
Concept neighborhoods
23
Bridge connections
77

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.

Occurrence and associations · 28 topics
Overview · 27 topics
Structure · 5 topics
Appearance · 4 topics
Optical properties · 4 topics
Physical properties · 3 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.

Birefringence
δ = 0.049
Category
Arsenate mineral
Cleavage
Perfect on {010}
Colour
Colourless, pink, red, red-orange or brown; light rose-pink in transmitted light
Crystal class
Prismatic (2/m) (same H-M symbol)
Crystal habit
Crystals prismatic and flattened {010}. Also in crusts with a crystalline surface and fibrous structure

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

Structure

Appearance

Optical properties

Physical properties

Occurrence and associations

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 Köttigite connects Entity context

The extracted context around Köttigite shows recurring relationship patterns in the source. For example, Köttigite → As2, AsO4, At, Ca, Ca2, Co, Co2, Daniel Mine, Erzgebirge, Fe, Fe2, Germany, H2O, It, Mapimí Municipality, Mexico, Mg, Neustädtel, Ni, OH Another extracted example is Köttigite → Although, C2/m, It, The, These. Use these groups to spot repeated connection types before inspecting the individual relationships.

Köttigite

Top relations

related to Occurrence and associations · 29
Köttigite → As2, AsO4, At, Ca, Ca2, Co, Co2, Daniel Mine, Erzgebirge, Fe, Fe2, Germany, H2O, It, Mapimí Municipality, Mexico, Mg, Neustädtel, Ni, OH
related to Structure · 5
Köttigite → Although, C2/m, It, The, These
related to Appearance · 3
Köttigite → Crystals, It, Pure
related to Optical properties · 3
Köttigite → Biaxial, For, The
related to Physical properties · 3
Köttigite → Because, It, Mohs
Birefringence · 1
Köttigite → δ = 0.049
Category · 1
Köttigite → Arsenate mineral
Cleavage · 1
Köttigite → Perfect on {010}
Colour · 1
Köttigite → Colourless, pink, red, red-orange or brown; light rose-pink in transmitted light
Crystal class · 1
Köttigite → Prismatic (2/m) (same H-M symbol)

Important terminology

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

Important terminology

crystals aso4 8h2o group zinc monoclinic mineral structure colourless minerals axis perpendicular two vivianite parasymplesite erythrite annabergite formula optical red

Köttigite relationships Subject–Predicate–Object triples

TTTA extracted 69 structured relationships around Köttigite. Examples in this analysis include Köttigite → Birefringence → δ = 0.049 and Köttigite → Category → Arsenate mineral. The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
KöttigiteBirefringenceδ = 0.0491.00infobox
KöttigiteCategoryArsenate mineral1.00infobox
KöttigiteCleavagePerfect on {010}1.00infobox
KöttigiteColourColourless, pink, red, red-orange or brown; light rose-pink in transmitted light1.00infobox
KöttigiteCrystal classPrismatic (2/m) (same H-M symbol)1.00infobox
KöttigiteCrystal habitCrystals prismatic and flattened {010}. Also in crusts with a crystalline surface and fibrous structure1.00infobox
KöttigiteCrystal systemMonoclinic1.00infobox
KöttigiteDana classification40.3.6.51.00infobox
KöttigiteDiaphaneityTranslucent1.00infobox
KöttigiteFormula.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…1.00infobox
KöttigiteFormula mass618.13 g/mol1.00infobox
KöttigiteFractureFibrous fracture yields a silky lustre1.00infobox
KöttigiteIMA symbolKöt1.00infobox
KöttigiteLustreResinous or waxy, silky on fracture1.00infobox
KöttigiteMohs scale hardness.mw-parser-output .frac{white-space:nowrap}.mw-parser-output .frac .num,.mw-parser-output .frac .den{font-size:80%;line-height:0;vertical-align:super}.mw-parser-output .frac .de…1.00infobox
KöttigiteOptical propertiesBiaxial (+)1.00infobox
KöttigiteOther characteristicsNot fluorescent1.00infobox
KöttigitePleochroismVisible. X, Y = colourless, Z = pale red.1.00infobox
KöttigiteRefractive indexnα = 1.622 nβ = 1.638 nγ = 1.6711.00infobox
KöttigiteSolubilitySoluble in acids1.00infobox
KöttigiteSpace groupC2/m1.00infobox
KöttigiteSpecific gravity3.331.00infobox
KöttigiteStreakReddish-white to white1.00infobox
KöttigiteStrunz classification8.CE.40 (10 ed.) VII/C.13-90 (8 ed.)1.00infobox
KöttigiteTenacityFlexible1.00infobox
Köttigiteis arare hydrated zinc arsenate which was discovered in 1849 and named by James Dwight Dana in 1850 in honour of Otto Friedrich Köttig0.90text

Related concept clusters Concept neighborhoods

The concept neighborhoods around Köttigite bring nearby vocabulary together. In this analysis, examples include Minerals, Zinc and 8h2o. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • Köttigite
    • Minerals
    • Zinc
    • 8h2o
    • Aso4
    • Sphalerite
    • Three
    • Formula
    • Monoclinic
    • Two
    • Axis
    • Arsenate
    • Forms
  • köttigite
    • Minerals
    • Zinc
    • 8h2o
    • Aso4
    • Sphalerite
    • Three
    • Formula
    • Monoclinic
    • Two
    • Axis
    • Arsenate
    • Forms
  • vivianite group
    • Members
    • Group
    • Vivianite
    • Means
    • Cations
    • Forms
    • Monoclinic
    • Annabergite
    • Erythrite
    • Parasymplesite
    • Three
    • Minerals
  • point group
    • Vivianite
    • Members
    • Means
    • Monoclinic
    • Parasymplesite
    • Three
    • Zn3
    • Crystal
    • Light
    • Minerals
    • Optical
    • Red
  • structure
    • Cleavage
    • Lustre
    • Zn3
    • Also
    • Optical
    • Monoclinic
    • Pleochroism
    • Biaxial
    • Crystal
    • Light
    • Red
    • Two
  • zinc
    • Köttigite
    • Arsenate
    • Cations
    • Schneeberg
    • Cobalt
    • Nickel
    • Sphalerite
    • Three
    • Formula
    • Minerals
    • Red
    • Mineral
  • optical properties
    • Biaxial
    • Crystals
    • Structure
    • Cleavage
    • Lustre
    • Pleochroism
    • Three
    • Zn3
    • Also
    • Crystal
    • Light
    • Red
  • secondary minerals
    • Cations
    • Forms
    • Members
    • Erythrite
    • Three
    • Vivianite
    • Zn3
    • Also
    • Monoclinic
    • Structure
    • Two
    • Zinc

Connections between topic areas Semantic bridges

For Köttigite, one of the stronger structural bridges in this analysis connects Köttigite with Occurrence and associations. 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
Köttigite — Occurrence and associations · splits 49 ⟂ 29
Köttigite — Overview · splits 50 ⟂ 28
Köttigite — Structure · splits 72 ⟂ 6
Köttigite — Appearance · splits 73 ⟂ 5
Köttigite — Optical properties · splits 73 ⟂ 5
Köttigite — Physical properties · splits 74 ⟂ 4

Map overview Semantic statistics

Köttigite

Nodes78
Edges77
Triples69
Avg. degree1.97
Density0.025641
Components1

Source & methodology

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

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

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