Fig. 2 | Nature Communications

Fig. 2

From: Multi-scale magnetic mapping of serpentinite carbonation

Fig. 2

Field and microtextural relationships of carbonated serpentinite. a Field image of a sharp soapstone reaction front locally following fractures in the serpentinite. b Typical appearance of listvenite in the field with abundant quartz veinlets in front of massive soapstone (person for scale). ce Representative micrographs of serpentinite, soapstone, and listvenite mineral assemblages in cross-polarized transmitted light. fh Reflected light micrographs of oxide and sulfide phases in serpentinite, soapstone, and listvenite. Magnetite in serpentinite and soapstone is present as large grains and as fine grained matrix constituent with grain-sizes between ~10 µm and ~500 µm. Listvenite contains in most cases only relict amounts of magnetite and sometime additional pyrite and chalcopyrite together with minor pyrrhotite. Mineral abbreviations follow Whitney and Evans49

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