Research any topic before you write.

Find related topics. | Discover entities. | See connections. | Build a topical map.

Cristobalite

Cristobalite (/krɪˈstoʊbəlaɪt/ krist-OH-bə-lyte) is a mineral polymorph of silica that is formed at very high temperatures. It has the same chemical formula as quartz, SiO2, but a distinct crystal structure. Both quartz and cristobalite are polymorphs with all the members of the quartz group, which also include coesite, tridymite and stishovite. It is…

Art & Measurement

Use the mouse wheel or two fingers (on touchscreens) to zoom in and out of the map.

Research this topic

Explore the main themes, entities and connections around Cristobalite. Start with the topic map, then use the sections below for research and deeper semantic analysis.

Explore this topic

Start with a few of the strongest sections from the source topic. These are research directions, not a list of keywords you must use.

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

Birefringence
0.003
Category
Tectosilicate minerals
Color
Colorless, white
Crystal class
Trapezohedral (422)
Crystal habit
Octahedra or spherulites up to several cm in diameter
Crystal system
Tetragonal

Topics to explore

Browse the full topic structure. Each item opens a new analysis centered on that subject.

Overview

Properties

Occurrence

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.

Map overview Semantic statistics

Cristobalite

Nodes39
Edges38
Triples53
Avg. degree1.95
Density0.051282
Components1

How this topic connects Entity context

See the strongest relationship patterns around the current topic before diving into the raw triples.

Cristobalite

Top relations

related to Structures · 12
Cristobalite → At, Fd3m, Going, It, No, P41212, P43212, Pearson, The, There, This, Under
related to Metastability · 8
Cristobalite → Framework, Ostwald's, SiO2, SiO4, The, These, This, When
related to Occurrence · 6
Cristobalite → California, In, Monterey Formation, The, US, X-ray
Birefringence · 1
Cristobalite → 0.003
Category · 1
Cristobalite → Tectosilicate minerals
Color · 1
Cristobalite → Colorless, white
Crystal class · 1
Cristobalite → Trapezohedral (422)
Crystal habit · 1
Cristobalite → Octahedra or spherulites up to several cm in diameter
Crystal system · 1
Cristobalite → Tetragonal
Dana classification · 1
Cristobalite → 75.1.1.1

Important terminology Word statistics

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

Important terminology

silica tetrahedra form quartz transition atoms unit cubic axes tetragonal white crystal group framework oxygen β-cristobalite axis tridymite spherulites obsidian

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
CristobaliteBirefringence0.0031.00infobox
CristobaliteCategoryTectosilicate minerals1.00infobox
CristobaliteColorColorless, white1.00infobox
CristobaliteCrystal classTrapezohedral (422)1.00infobox
CristobaliteCrystal habitOctahedra or spherulites up to several cm in diameter1.00infobox
CristobaliteCrystal systemTetragonal1.00infobox
CristobaliteDana classification75.1.1.11.00infobox
CristobaliteDiaphaneityTransparent1.00infobox
CristobaliteFormula.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
CristobaliteFractureConchoidal1.00infobox
CristobaliteGroupQuartz group1.00infobox
CristobaliteIMA symbolCrs1.00infobox
CristobaliteJmol .mw-parser-output .nobold{font-weight:normal}(3D)Interactive image1.00infobox
CristobaliteLusterVitreous1.00infobox
CristobaliteMelting point1,713 °C (3,115 °F) (β)1.00infobox
CristobaliteMohs scale hardness6–71.00infobox
CristobaliteOptical propertiesUniaxial (−)1.00infobox
CristobalitePleochroismNone1.00infobox
CristobaliteRefractive indexnω = 1.487 nε = 1.4841.00infobox
CristobaliteSpace groupP41212, P432121.00infobox
CristobaliteSpecific gravity2.32–2.361.00infobox
CristobaliteStreakWhite1.00infobox
CristobaliteStrunz classification4.DA.151.00infobox
CristobaliteTenacityBrittle1.00infobox
CristobaliteTwinningon {111}1.00infobox
CristobaliteUnit cella = 4.9709(1) Å, c = 6.9278(2) Å; Z = 4 (α polytype)1.00infobox

Related concept clusters Concept neighborhoods

These clusters group vocabulary that occurs around closely connected concepts in the source material.

    Connections between topic areas Semantic bridges

    Bridges can reveal useful research angles that are easy to miss in a flat list of related terms.

    Min side: 3
    For writers, content strategists, SEOs, marketers and creators — from quick topic research to advanced semantic analysis.