Sandstone
A consolidated sedimentary rock dominated by sand-sized detrital grains, commonly quartz, feldspar or rock fragments.
Language and route: English compound sand + stone; the English common word precedes quantitative geological usage. English compound sand + stone; the English common word precedes quantitative geological usage
Literal gloss: stone made of sand
The name and its history
First geological naming act not verified · First geological printed use not verified
- What does the word literally mean?
- Immediate borrowing/formation pathway: English compound sand + stone; the English common word precedes quantitative geological usage. Linguistic gloss: ‘stone made of sand’. This is not automatically the original namer’s stated reason.
- What did the original author mean?
- An inherited everyday rock name described visibly sandy building stones long before quantitative petrography. Later petrographers began distinguishing framework grains, cement, matrix and provenance rather than treating all sandstone alike.
- Why was the name needed?
- Grain-based naming had to work across different colour, hardness, fossil content and original depositional settings.
- What evidence supported the original concept?
- Grain size in hand specimen, thin-section mineral modes, cement relationships and sedimentary structures; Wentworth 1922 and Pettijohn 1954 document later standardising stages, not original invention.
- How has geology changed the concept?
- Modern names subdivide sandstone by grain size, matrix and framework composition; neither a particular source terrain nor a depositional environment is proved by the word alone.
Further historical context
An inherited everyday rock name described visibly sandy building stones long before quantitative petrography. Later petrographers began distinguishing framework grains, cement, matrix and provenance rather than treating all sandstone alike.
Grain-based naming had to work across different colour, hardness, fossil content and original depositional settings.
Grain size in hand specimen, thin-section mineral modes, cement relationships and sedimentary structures; Wentworth 1922 and Pettijohn 1954 document later standardising stages, not original invention.
Modern names subdivide sandstone by grain size, matrix and framework composition; neither a particular source terrain nor a depositional environment is proved by the word alone.
Editorial qualification
First coinage/priority not independently established; historical narrative is a source-bounded reconstruction.
Related names
Arkose · Greywacke · Arenite · Wacke · Siltstone · Cross-bedding · Shale
Sources
- British Geological Survey, Rock Classification Scheme, Volume 3 overview — Modern descriptive sedimentary classification; does not establish historical first use
- Wentworth (1922), A Scale of Grade and Class Terms for Clastic Sediments — Original 1922 classification paper, verified title/DOI and journal pagination; full article not transcribed
- Pettijohn (1954), Classification of Sandstones — Original 1954 abstract examined; compositional, maturity and matrix criteria