How to Identify Carbonates in the Field

A brief introduction on how to identify some carbonate rocks and minerals in the field, including some that might not react to 10% HCl.

The full video is available in the Fieldcraft for Geologists on-line course here:
https://geologyupskill.thinkific.com/...


Index:
0:00 Why identify carbonates?
0:40 Carbonate rocks. Karst topography.
0:52 Surface pits.
1:16 "V" shaped fracture traces.
1:51 Porous rind.
2:49 Mosaic fracture pattern
3:19 Recessive layers.
3:47 Palisade texture.
4:13 Carbonatye minerals. Calcite.
5:12 Iron bearing carbonates.
5:24 Siderite
5:55 Ankerite
6:23 Carbonate gossans.

Credits:
Siderite crystal photo: https://upload.wikimedia.org/wikipedi...
Author: Didier Descouens
https://commons.wikimedia.org/wiki/Us...