Photograph as originally submitted to this page in the Historical Marker Database www.HMdb.org. Click on photo to resize in browser. Scroll down to see metadata.
Illite mineral
Photographer: United States geological Survey (PD)
Caption: Illite mineral
Additional Description: Illites are a group of mica-type clay minerals widely distributed in marine shales and related sediments.
Submitted: June 13, 2023, by Duane and Tracy Marsteller of Murfreesboro, Tennessee.
Database Locator Identification Number: p730377
File Size: 0.319 Megabytes

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