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Torbernite: History & Measurement
Torbernite, also known as chalcolite, is a relatively common mineral with the chemical formula Cu2·12H2O. It is a radioactive, hydrated green copper uranyl phosphate, found in granites and other uranium-bearing deposits as a secondary mineral. The chemical formula of torbernite is similar to that of autunite in which a Cu2+ cation replaces a Ca2+ cation.…
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Torbernite topic overview
The analysis highlights History and Measurement as prominent areas in the source structure around Torbernite.
Related topics
70
Source areas
7
Connected nodes
77
Extracted relationships
109
Related term clusters
20
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 localities · 37 topics
Overview · 10 topics
Crystal structure · 6 topics
Classification · 5 topics
Etymology and history · 5 topics
Metatorbernite · 4 topics
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.
A structured outline of related entities, concepts and subtopics. Open any item to build a new map centered on it.
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.
You can skip this section if you’re here for content ideas and keyword inspiration.
Advanced semantic analysis
How Torbernite connects Entity context
Entity context groups extracted connections by relationship type. Counts show recurrence in the analyzed source; the examples are research signals, not claims about importance.
The extracted context around Torbernite shows recurring relationship patterns in the source. For example, Torbernite → Argentina, Australia, Austria, Bavarian Forest, Belgium, Black Forest, Bolivia, Brazil, Canada, Chile, China, Congo, Czech Republic, Democratic Republic, Fichtel Mountains, France, Gabon, In Germany, Ireland, Italy Another extracted example is Torbernite → AsO4, Burns, Burns R1, Calos, Cu, H2O, I4/mmm, Kennard R1, Locock, Makarov, PO4, R1, Ross, Stergiou, Tobelko R1, UO2. Use these groups to spot repeated connection types before inspecting the individual relationships.
Torbernite
Top relations
related to Occurrence and localities· 40
Torbernite → Argentina, Australia, Austria, Bavarian Forest, Belgium, Black Forest, Bolivia, Brazil, Canada, Chile, China, Congo, Czech Republic, Democratic Republic, Fichtel Mountains, France, Gabon, In Germany, Ireland, Italy
Relationships are represented as Subject → Predicate → Object triples. Confidence describes extraction strength, not the real-world importance of a relationship; lower-confidence rows may be contextual rather than explicit.
TTTA extracted 109 structured relationships around Torbernite. Examples in this analysis include Torbernite → Birefringence → δ = 0.009 – 0.010 and Torbernite → Category → Phosphate minerals. The table shows each extracted connection, where it came from and its confidence.
Tabular crystals; Foliated to earthy masses and encrustations
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infobox
Torbernite
Crystal system
Tetragonal
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infobox
Torbernite
Density
measured: 3.22; calculated: 3.264(1)
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Torbernite
Diaphaneity
Transparent to subtranslucent
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infobox
Torbernite
Formula
Cu[(UO2)(PO4)]2(H2O)12
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Torbernite
Formula mass
641 – 713 g/mol, depending the degree of water loss
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infobox
Torbernite
Fracture
Brittle
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Torbernite
Fusibility
Decomposes before
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infobox
Torbernite
IMA symbol
Tor
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infobox
Torbernite
Luster
Vitreous; pearly
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infobox
Torbernite
Melting point
Decomposes before
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infobox
Torbernite
Mohs scale hardness
2–2.5
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infobox
Torbernite
Optical properties
Uniaxial (−)
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infobox
Torbernite
Other characteristics
Radioactive and Poisonous
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infobox
Torbernite
Pleochroism
Visible
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infobox
Torbernite
Refractive index
nω = 1.590 – 1.592 nε = 1.581 – 1.582
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Torbernite
Space group
I4/mmm
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infobox
Torbernite
Streak
Pale green
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infobox
Torbernite
Strunz classification
8.EB.05
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infobox
Torbernite
Twinning
Rare on
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infobox
No triples extracted yet.
Related concept clusters Related term clusters
Related term clusters group terms that sit near one another in the extracted graph. They are useful for discovering adjacent language and context, but proximity does not by itself imply a factual relationship.
The concept neighborhoods around Torbernite bring nearby vocabulary together. In this analysis, examples include Metatorbernite, Po4 and Uo2. Use the clusters to find adjacent concepts and terminology that may deserve separate research.
sum formula
Cu
Po4
Space
Uo2
Sum
Torbernite
Metatorbernite
Group
H2o
Water
Classification
Properties
Torbernite
Metatorbernite
Po4
Uo2
Crystal
H2o
Minerals
Structure
Sum
Uranyl
Group
Water
Arsenates
torbernite
Metatorbernite
Po4
Uo2
Crystal
H2o
Minerals
Structure
Sum
Uranyl
Group
Water
Arsenates
metatorbernite
Torbernite
Crystal
Po4
Group
Uo2
Water
H2o
Structure
Sum
Zeunerite
Arsenates
Phosphate
crystal structure
Structure
H2o
Phosphate
Crystals
Cu
Metatorbernite
Po4
Uranyl
Water
Torbernite
Properties
Uo2
classification
Properties
Found
H2o
Johanngeorgenstadt
Localities
Phosphate
Radioactive
Space
System
Crystals
Green
Minerals
mineral
Hydrated
Green
Torbernite
Copper
Arsenates
Chemical
Found
Phosphate
Radioactive
Crystals
Molecules
Cu
phosphate
Found
Radioactive
Structure
Classification
Crystal
Properties
Uranyl
H2o
Johanngeorgenstadt
Localities
Space
System
Connections between topic areas Semantic bridges
Semantic bridges connect parts of the graph that would otherwise be more separate. A bridge is a structural signal in this analysis, not a claim that the two topic areas are equivalent.
For Torbernite, one of the stronger structural bridges in this analysis connects Torbernite with Occurrence and localities. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.
Number of nodes, edges, triples, density and central hubs. Use it to gauge the size and connectivity of the map.
Torbernite
Nodes78
Edges77
Triples109
Avg. degree1.97
Density0.025641
Components1
Source & methodology
TTTA analyzes the structure around Torbernite to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as History & Measurement, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.
