Rocks and minerals hold precious clues about ... of sodium chloride (NaCl), from which table salt is made — is a soft mineral that forms clear, cube-shaped crystal fragments.

Kaolinite is a soft, earthy, usually white, mineral produced by the chemical weathering of aluminium silicate minerals like feldspar.

Apatite (calcium triphosphate): This mineral makes up the bones and ... middle of a relatively uncemented sedimentary rock). Indeed, the critter probably led to the formation of the concretion. As the ...

“Zeolites are minerals rich in silicon and ... The discovery of a new mode of preservation of soft tissues potentially specific of volcanic rocks indicates that these deposits can contain ...

These feathers were found to have been preserved by zeolite minerals. | Credit ... such as these broaden the range of potential rock types where we can find fossils, even those preserving fragile soft ...

The Science Education Center houses thousands of rock and mineral samples in what is known as "The Rock & Mineral Room." The entire collection can be viewed by clicking on each of the virtual drawers ...

"Zeolites are minerals rich in silicon and ... The discovery of a new mode of preservation of soft tissues potentially specific to volcanic rocks indicates that these deposits can contain ...