Chemical weathering causes iron in rock to oxidize, and also pyrite within the altered wall rock is oxidized to limonite, geothite and hematite. Given these facts, chemical weathering causes what to change to limonite among the following options:
- pyrite
 - growth
 - Collagen
 - fibrous
 - cellulose
 - soil
 - cracks
 - calcite


 

 pyrite        