Hornblende
An informal field term for several dark amphibole minerals, especially calcium-amphiboles; not one uniquely defined IMA species.
Language and route: German mining vernacular. From German Hornblende; Blende belongs to mining terminology for minerals that misled ore seekers, while the Horn- element has several suggested explanations.
Literal gloss: deceptive ore / deceptive shine (uncertain nuance)
The name and its history
German miners; Werner documented a mineralogical usage · Prior vernacular; Werner attribution 1789
- What does the word literally mean?
- The transmitted name is From German Hornblende; Blende belongs to mining terminology for minerals that misled ore seekers, while the Horn- element has several suggested explanations. The short gloss ‘deceptive ore / deceptive shine (uncertain nuance)’ is a guide to the naming allusion, not by itself a modern mineralogical definition.
- What did the original author mean?
- An older German mining name was adopted and codified in Werner-era mineralogy. It described dark crystals whose appearance was easily confused with useful ores.
- Why was the name needed?
- Ore-workers needed an everyday distinction for black lustrous but unpromising material, long before mineral species could be identified by microprobe chemistry.
- What evidence supported the original concept?
- Dark colour, surface sheen and misleading resemblance to ore minerals supplied the vernacular criteria; later mineralogy revealed multiple species under this name.
- How has geology changed the concept?
- Today field ‘hornblende’ often abbreviates ferro- or magnesio-hornblende and neighbouring amphiboles; a precise species needs compositional analysis.
Further historical context
An older German mining name was adopted and codified in Werner-era mineralogy. It described dark crystals whose appearance was easily confused with useful ores.
Ore-workers needed an everyday distinction for black lustrous but unpromising material, long before mineral species could be identified by microprobe chemistry.
Dark colour, surface sheen and misleading resemblance to ore minerals supplied the vernacular criteria; later mineralogy revealed multiple species under this name.
Today field ‘hornblende’ often abbreviates ferro- or magnesio-hornblende and neighbouring amphiboles; a precise species needs compositional analysis.
Related names
Sources
- Mindat, Hornblende — Werner (1789) — German mining vernacular and modern informal amphibole usage
- Hawthorne et al. (2012), Nomenclature of the amphibole supergroup — Current amphibole nomenclature and root-name conventions
- Mindat, Amphibole Supergroup — Root meaning, historical usage, modern group structure