coltan: meaning, definition, pronunciation and examples
C2Technical/Journalistic
Quick answer
What does “coltan” mean?
A dull black metallic ore, primarily a mixture of two minerals, columbite and tantalite, from which niobium and the critical element tantalum are extracted.
Audio
Pronunciation
Definition
Meaning and Definition
A dull black metallic ore, primarily a mixture of two minerals, columbite and tantalite, from which niobium and the critical element tantalum are extracted.
A conflict mineral associated with electronics manufacturing (especially capacitors in phones and computers), often mined in regions of political instability, leading to ethical sourcing concerns.
Dialectal Variation
British vs American Usage
Differences
No significant lexical or usage differences. Spelling and pronunciation are consistent.
Connotations
Identical connotations in both varieties, linked to conflict minerals and technology supply chains.
Frequency
Equally low-frequency in both varieties, appearing almost exclusively in specialist technical, economic, or geopolitical reporting.
Grammar
How to Use “coltan” in a Sentence
Mine/extract/source coltan from [region]Trade/smuggle coltanDepend on coltan for [product]Vocabulary
Collocations
Examples
Examples of “coltan” in a Sentence
adjective
British English
- coltan-rich regions
- coltan-related violence
American English
- coltan-rich regions
- coltan-related conflict
Usage
Meaning in Context
Business
Discussions of supply chain ethics, sourcing, and material costs for electronics manufacturers.
Academic
In geology, materials science, international relations, and economics papers focusing on resource politics.
Everyday
Virtually never used in casual conversation.
Technical
Precise term in geology, mining engineering, and electronics component manufacturing.
Vocabulary
Synonyms of “coltan”
Neutral
Weak
Vocabulary
Antonyms of “coltan”
Watch out
Common Mistakes When Using “coltan”
- Using it as a countable noun (e.g., 'a coltan' is incorrect).
- Confusing it with 'cobalt,' which is a different metallic element.
FAQ
Frequently Asked Questions
No, it is not a single mineral. It is a natural ore composed primarily of two minerals: columbite (source of niobium) and tantalite (source of tantalum).
Because tantalum, extracted from coltan, is a key component in capacitors essential for miniaturised electronics like mobile phones, laptops, and gaming consoles.
It refers to coltan mined in conflict zones, where sales may finance armed groups and be associated with human rights abuses. This has led to international efforts for 'due diligence' in supply chains.
Historically, a significant portion of global reserves and production has come from the Democratic Republic of the Congo, but it is also mined in countries like Rwanda, Brazil, and Australia.
A dull black metallic ore, primarily a mixture of two minerals, columbite and tantalite, from which niobium and the critical element tantalum are extracted.
Coltan is usually technical/journalistic in register.
Coltan: in British English it is pronounced /ˈkɒltan/, and in American English it is pronounced /ˈkoʊlˌtæn/ or /ˈkɑːltæn/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think: COLtan is the COre ore for your mobile phone and Laptop. COLumbite + TANtalite = COLTAN.
Conceptual Metaphor
COLtan is BLOOD in the machine (metaphor linking mineral extraction to human suffering and conflict).
Practice
Quiz
Coltan is primarily associated with which of the following issues?