Sandstone copper ore


Sandstone (copper ore)

Sandstone (copper ore)

Lithogenous sedimentary rock.
This sample is a quartz sandstone cemented with copper mineral (chrysocolla) matrix.
The original rock was lithified dune sand of the Jurassic-age Navajo Sandstone. The copper was deposited by groundwater, filling in pores spaces between the sand grains.
This sample came from an abandoned copper mine tailing pile near Page, Arizona.

https://gotbooks.miracosta.edu/rocks/sedimentary/28.html

2/2/2021