Research any topic before you write.

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

Uraninite

Uraninite, also known as pitchblende, is a radioactive, uranium-rich mineral and ore with a chemical composition that is largely UO2 but because of oxidation typically contains variable proportions of U3O8. Radioactive decay of the uranium causes the mineral to contain oxides of lead and trace amounts of helium. It may also contain thorium and rare-earth…

Art, Occurrence & Overview

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 Uraninite. 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.

Category
Oxide minerals
Cleavage
Indistinct
Color
Steel-black to velvet-black, brownish black, pale gray to pale green; in transmitted light, pale green, pale yellow to deep brown and green-gray (thin fragments)
Crystal class
Hexoctahedral (m3m) H-M symbol: (4/m 3 2/m)
Crystal habit
Massive, botryoidal, granular. Octahedral crystals uncommon.
Crystal system
Isometric

Topics to explore

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

Overview

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

Uraninite

Nodes72
Edges71
Triples85
Avg. degree1.97
Density0.027778
Components1

How this topic connects Entity context

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

Uraninite

Top relations

related to Occurrence · 48
Uraninite → Another, Arizona, Athabasca Basin, Australia, Canada, Charles Steen, Colorado, Congo, Connecticut, Czech Republic, Democratic Republic, England, Enterprise, German, German Democratic Republic, German Reunification, Germany, Great Bear Lake, In, Industrial Works R-1 State
related to overview · 14
Uraninite → All, Brückmann, Czech, German, German/Czech, Germany, Joachimsthal, Johanngeorgenstadt, Jáchymov, Klaproth, Marie Skłodowska-Curie, Ore Mountains, Pitchblende, The
related to External links · 3
Uraninite → Media, Wikimedia Commons, Wiktionary-logo-en-v2
Category · 1
Uraninite → Oxide minerals
Cleavage · 1
Uraninite → Indistinct
Color · 1
Uraninite → Steel-black to velvet-black, brownish black, pale gray to pale green; in transmitted light, pale green, pale yellow to deep brown and green-gray (thin fragments)
Crystal class · 1
Uraninite → Hexoctahedral (m3m) H-M symbol: (4/m 3 2/m)
Crystal habit · 1
Uraninite → Massive, botryoidal, granular. Octahedral crystals uncommon.
Crystal system · 1
Uraninite → Isometric
Diaphaneity · 1
Uraninite → Opaque; transparent in thin fragments

Important terminology Word statistics

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

Important terminology

uranium ore also pitchblende radioactive mineral found decay germany czech known contain helium minerals german mountains small republic amounts black

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
UraniniteCategoryOxide minerals1.00infobox
UraniniteCleavageIndistinct1.00infobox
UraniniteColorSteel-black to velvet-black, brownish black, pale gray to pale green; in transmitted light, pale green, pale yellow to deep brown and green-gray (thin fragments)1.00infobox
UraniniteCrystal classHexoctahedral (m3m) H-M symbol: (4/m 3 2/m)1.00infobox
UraniniteCrystal habitMassive, botryoidal, granular. Octahedral crystals uncommon.1.00infobox
UraniniteCrystal systemIsometric1.00infobox
UraniniteDiaphaneityOpaque; transparent in thin fragments1.00infobox
UraniniteFormulaUranium dioxide or uranium(IV) oxide (UO2)1.00infobox
UraniniteFractureConchoidal to uneven1.00infobox
UraniniteIMA symbolUrn1.00infobox
UraniniteLusterSubmetallic, greasy, dull1.00infobox
UraniniteMohs scale hardness5–61.00infobox
UraniniteOptical propertiesIsotropic1.00infobox
UraniniteOther characteristicsRadioactive 20 to 150 kBq/g1.00infobox
UraninitePitchblendeMassive1.00infobox
UraniniteSpace groupFm3m1.00infobox
UraniniteSpecific gravity10.63–10.95; decreases on oxidation1.00infobox
UraniniteStreakBrownish black, gray, olive-green1.00infobox
UraniniteStrunz classification4.DL.051.00infobox
UraniniteUnit cella = 5.4682 Å; Z = 41.00infobox

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.