collophane: meaning, definition, pronunciation and examples
C2Technical / Scientific
Quick answer
What does “collophane” mean?
A massive, cryptocrystalline, or earthy variety of apatite, which is a calcium phosphate mineral.
Audio
Pronunciation
Definition
Meaning and Definition
A massive, cryptocrystalline, or earthy variety of apatite, which is a calcium phosphate mineral.
A dull, non-crystalline, or poorly crystalline mineral form found in sedimentary deposits, often constituting the main component of phosphate rock and fossil bone material.
Dialectal Variation
British vs American Usage
Differences
No significant usage difference; the term is identically used in both scientific communities.
Connotations
None beyond its precise mineralogical definition.
Frequency
Extremely low frequency in both varieties, limited to specialist literature.
Grammar
How to Use “collophane” in a Sentence
The [sedimentary rock] contains [collophane].[Collophane] constitutes the [principal mineral].Vocabulary
Collocations
Examples
Examples of “collophane” in a Sentence
adjective
British English
- The collophane material was analysed under the microscope.
American English
- The sample showed a collophane texture indicative of low-temperature formation.
Usage
Meaning in Context
Academic
Used in geology, palaeontology, and soil science papers to describe the phosphate mineral component of rocks and fossils.
Everyday
Virtually never used.
Technical
Precise term in mineralogical descriptions, geological surveys, and phosphate mining contexts.
Vocabulary
Synonyms of “collophane”
Strong
Neutral
Weak
Vocabulary
Antonyms of “collophane”
Watch out
Common Mistakes When Using “collophane”
- Misspelling as 'collophine' or 'colophane' (which is a different resin).
- Using it as a general term for any phosphate mineral instead of its specific amorphous form.
FAQ
Frequently Asked Questions
No, it is a descriptive term for a massive, cryptocrystalline, or earthy form of the mineral apatite, not a separate species.
In sedimentary phosphate rocks (phosphorites), as a replacement mineral in fossils (especially bones and teeth), and in some low-temperature mineral deposits.
It is a major component of commercially mined phosphate rock, which is used to produce fertilisers.
It requires laboratory analysis. In hand specimen, it is dull, often brownish or grey, and soft. Definitive identification typically involves X-ray diffraction or electron microscopy due to its poor crystallinity.
A massive, cryptocrystalline, or earthy variety of apatite, which is a calcium phosphate mineral.
Collophane is usually technical / scientific in register.
Collophane: in British English it is pronounced /ˈkɒləfeɪn/, and in American English it is pronounced /ˈkɑːləfeɪn/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Imagine a COLLar made of a dull, bone-like PHANE (like 'cellophane' but hard and mineral) – a dull, mineral material forming fossil bones.
Practice
Quiz
In which field is the term 'collophane' primarily used?