Rock Gypsum - Geology 1501 - ECU
Type Sedimentary Rock Origin Chemical Texture Nonclastic; Fine-grained Composition Gypsum Color Pink Miscellaneous Crystalline; Hardness < Fingernail Depositional Environment Arid …
Classification of Sedimentary Rocks - University of Kansas
These rocks are classified on the proportions of vitric, crystal (mineral), or lithic material they contain, for example, "vitric lithic ash," or "crystal vitric tuff."
KGS--Gypsum in Kansas--Geology - University of Kansas
2018年2月20日 · The most common variety of gypsum is massive or rock gypsum. It consists of an intimate intergrowth of small crystals, and ranges from finely granular to coarsely crystalline …
Grains show an interlocking mosaic of crystals. Chemical sedimentary rocks such as limestone, dolomite, rock salt and gypsum show such texture. Textures are said to be primary, where the …
sedimentary rocks (such as shale and mudstone) are fine enough that the individual grains cannot be distinguished. These fine-grained rocks are said to have an aphanitic texture. Non-clastic …
Chapter 3 Information on Texture : (Rock description)
1986年1月1日 · This chapter discusses the texture of rocks that includes the geometrical aspects of the constituent components, grains or particles and crystals, of rocks—that is, their size, …
Alternating layers of felsic igneous rock (light) and mafic gneiss (dark) migmatite Soft – reacts with dilute acid marble Hard – does not react with dilute acid quartzite METAMORPHIC ROCKS …
Gypsum and Halite: Evaporite Minerals - University of Pittsburgh
Gypsum is readily identified by its softness (a fingernail scratches it). Gypsum comes as clear crystals that display one perfect cleavage (selenite), as blocks of featureless white rock …
Rock Gypsum is a chemical precipitate that is composed almost exclusively of the mineral gypsum. Gypsum commonly ranges in color from orange to light red and is characterized by …
Rock gypsum - MiMaEd
TEXTURE This coarse- to fine-grained rock has a fibrous habit. It may also show bedding, which is often strongly distorted. Rock gypsum is usually interbedded with sandstones, marls, and …