Well attestedNamed from the place
beidellite
noun · first attested 1925
The material from the place the mineral is named after turned out not to be the mineral.
An aluminum-rich smectite clay mineral, one of the common swelling clays in bentonite.
39.0000°N -105.5000°W · Q1261
Record
- Relationship
- Named from the place
- Confidence
- Well attestedThe place link is the standard scholarly account.
- Attested
- 1925
- Part of speech
- noun
Explanations here are written for this atlas. Dictionary text is not copied; the sources are linked so the claim can be checked.
- Step 1
Colorado
- In English
beidellite
E. S. Larsen and E. T. Wherry proposed the name beidellite in 1925 for clay from Beidell, Colorado. When the Smithsonian material was re-examined, the Beidell specimen R4761 proved to be a mixture, so the working reference specimen is R4762 from the Black Jack mine in Idaho. Beidellite is now one of the standard end members used to classify swelling clays.
United States
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