greensand
Sign in to saveAlso known as green sand, green-sand, greensand soil, green-sand soil, glauconitic sandstone, glauconarenite
thumb|Greensand (glauconitic sandstone) alt=This image shows a rock and the occurrence of glauconitic siltstone in the Serra da Saudade ridge, in the Alto Paranaíba region, Minas Gerais state, Brazil.|thumb|Occurrence of glauconitic siltstone in the Serra da Saudade ridge, in the Alto Paranaíba region, [[Minas Gerais, Brazil]] Greensand or green sand is a sand or sandstone which has a greenish color. This term is specifically applied to shallow marine sediment that contains noticeable quantities of rounded greenish grains. These grains are called glauconies and consist of a mixture of mixed-la
Wikidata facts
- Subclass of
- sandstone
- Material used
- glauconite
- Image
- Estonian Museum of Natural History Specimen No 173341 photo (g1 g1-1623 1 jpg).jpg
- Has use
- water softening
Show 3 more facts
- color
- green
- Commons category
- Greensand
- equivalent class
- wordnet-rdf.princeton.edu/pwn30/14995918-n
via Wikidata · CC0
~7 min read
Encyclopedic overview
8 sectionsContents
- Formation
- Occurrence
- Brazil
- Great Britain
- Properties and uses
- See also
- References
- External links
thumb|Greensand (glauconitic sandstone) alt=This image shows a rock and the occurrence of glauconitic siltstone in the Serra da Saudade ridge, in the Alto Paranaíba region, Minas Gerais state, Brazil.|thumb|Occurrence of glauconitic siltstone in the Serra da Saudade ridge, in the Alto Paranaíba region, [[Minas Gerais, Brazil]] Greensand or green sand is a sand or sandstone which has a greenish color. This term is specifically applied to shallow marine sediment that contains noticeable quantities of rounded greenish grains. These grains are called glauconies and consist of a mixture of mixed-layer clay minerals, such as smectite and glauconite. Greensand is also loosely applied to any glauconitic sediment.
==Formation== Greensand forms in anoxic marine environments that are rich in organic detritus and low in sedimentary input. Having accumulated in marine environments, greensands can be fossil-rich, such as in the late-Cretaceous deposits of New Jersey, United States.
Excerpted from Wikipedia’s “greensand” article, available under the CC BY-SA 4.0 licence.
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