Most caves are in limestone or dolomite rocks. Some (e.g. Carlsbad Caverns) are in gypsum rocks. But caves can also exist in lava deposits (e.g. lava tube caves), marble rocks (i.e. metamorphosed limestone), and many other types of rocks at lower rates, depending on various variables.
Caves usually and mostly forms in sedimentary rocks. Example, Limestone.
Caves usually form in areas with limestone or other soluble rocks that can be dissolved by water over long periods of time. Common locations for cave formation include regions with karst topography, such as in limestone landscapes or near volcanic activity, where lava tubes can create caves.
The rocks around Jenolan Caves are predominantly limestone, formed from ancient marine sedimentation. These rocks exhibit distinctive features such as cave formations due to the erosion by underground water over millions of years. Additionally, there are also dolomite and shale rocks present in the area surrounding the caves.
Magnesium veins are not typically found in caves. Magnesium is more commonly found in mineral deposits, such as magnesite or dolomite, which are formed through geological processes. While magnesium may be present in the rocks or minerals of a cave, it is not usually in the form of distinct veins.
In areas of past or present explosive felsic volcanism
Everywhere water is frequenly in contact with rocks. Like seashores, rivers, underground caves etc...
Caves caused by volcanic activity are made of basalt Caves caused by dissolution due to groundwater are formed in limestone or sometimes marble. Caves also form in glacial ice due to melting. (Glacial ice can technically be considered rock.)
All different kinds, usually quartz.
rocks, caves, mud
trees, on rocks, caves
In rocks or in underground caves
you can find it in the desert or caves like ferey path