Cave crystals constituting box-like blades between bygone bedrocks
Boxwork in Wind Cave, South Dakota
In geology, boxwork is defined as a honeycomb-like structure that can form in some fractured or jointed sedimentary rocks. If the fractures in the host rock are mineralized, they can become more resistant to weathering than the surrounding rock, and subsequent erosion can produce boxwork structures. In mining geology, boxwork is a set of (typically) quartz-lined cavities, retaining the shape of the dissolved ore minerals, in gossans. In classical geology or mineralogy these mineral casts would not be called boxwork, but would instead be called pseudomorphs, or epimorphs. In cave geology, boxwork is an uncommon type of mineral structure, or speleogen (similar to a speleothem, but formed by erosion rather than accretion), occasionally found in caves and erosive environments.
In geology, boxwork is defined as a honeycomb-like structure that can form in some fractured or jointed sedimentary rocks. If the fractures in the host...
calcite formations known as boxwork, as well as its frostwork. Approximately 95 percent of the world's discovered boxwork formations are found in Wind...
rather than as secondary deposits. These include: Pillars Scallops Boneyard Boxwork Others Cave popcorn, also known as "coralloids" or "cave coral", are small...
607,418 Wind Cave is distinctive for its calcite fin formations called boxwork, a unique formation rarely found elsewhere, and needle-like growths called...
iron cap all that remains is iron oxides and quartz, often in the form of boxworks (which are quartz-lined cavities retaining the shape of the dissolved ore...
or gypsum. In some caves frostwork may grow on top of cave popcorn or boxwork. In architecture frost-work or frostwork refers to a style of rustication...
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