Gypsum alabaster |
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Gypsum (Alabaster)Hydrogenous sedimentary rock.This alabaster gypsum sanoke from gypsum mine tailings, Anza Borrego desert area, California. During Miocene time, a shallow restricted marine bay extend northward from the Gulf of California into what is now the Anza Borrego desert region San Diego and San Bernardino Counties, California. |
| https://gotbooks.miracosta.edu/rocks/sedimentary/14.html | 2/2/2021 |