Quartz Mineral In Limestone Rock
by Michael Marten/science Photo Library
Title
Quartz Mineral In Limestone Rock
Artist
Michael Marten/science Photo Library
Medium
Photograph - Photograph
Description
Quartz mineral in limestone rock. This band of quartz (white) is surrounded by limestone (grey). Quartz is a mineral formed of silica, while limestone is a sedimentary rock formed from calcium minerals such as calcium carbonate. Quartz bands in limestone can be formed by processes such as deposition from water passing through cracks in the rock, forming a hydrothermal mineral vein. Photographed at Rhossili, on the Gower Peninsula, on the South Wales coastline. The limestone in this area dates from the Carboniferous period of the geological timescale, some 360-300 million years ago.
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February 22nd, 2021
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