The main component of talc is magnesium silicate containing water, and the molecular formula is Mg3[Si4O10](OH)2. Talc belongs to the monoclinic system. Crystals are pseudo-hexagonal or rhombic flakes, occasionally. Usually into dense massive, leaf-like, radial, fibrous aggregates. It is color...
Minerals are crystals that are naturally formed of various elements under intense conditions. In the case of kyawthuite, scientists concluded during their study that the gem primarily contains bismuth (a silvery pinkish metal), antimony (a silvery bluish white metal or metalloid), and tetraoxygen ...
The reason might be that the smooth coating formed by soluble phosphate and other mineral crystals made Pb2+ trapped on the surface of soil particles37. In general, in the treatment groups of combined application, the percentage of oxidizable and residual Pb decreased significantly, while the ...
Halloysite nanotubes and Chrysotile nanotubes are two kinds of one-dimensional nano tubular minerals with similar morphology but with slightly different composition and structure, and both of them belong to layered silicate minerals. Halloysite is a kind of layered silicate clay mineral composed of 1:...
The surfaces of hydrated rocks of marine hydrate deposits, mined in various places (Dongsha Area of the South China Sea, Pearl River Mouth Basin), have different morphology (laminated, nodular, vein, disseminated) with different grain sizes30. In literature, a lot of attention is paid to ...
The relationship between various kinds of solubilization and the formation of mesophases is elucidated.In aqueous solutions of association colloids there are three processes by which mesomorphous phases form: (i) the separation of the mi... P Ekwall,L Mandell,K Fontell - 《Molecular Crystals &...
As a result of the change in the parameters controlling the crystallization process, the crystals may exhibit different morphologies, which reflect the new crystallization conditions. The textures observed in rocks are reflective of their formation conditions, which are determined by the degree of ...
The solid particles and ice crystals in frozen sandstone are tightly bonded, which is beneficial to the propagation and reception of acoustic emission signals before the crack penetrates; in addition, the AE events location are more accurate. Acoustic emission three-dimensional positioning can reveal ...
@lighth0se33 – Clay isn't a rock itself. It makes up part of the composition of many other kinds of rocks, though. Just like sand particles compose sandstone rocks, bits of clay here and there get stuck in other rocks as they form. I think it's a matter of them being in the ri...
of beryllium ore deposits, but three are predominant: granitic pegmatite deposits, volcanogenic, and carbonate-hosted pegmatite deposits. These deposits are distributed throughout the world and the presence of beryl, especially in large crystals, is typically associated with granitic pegmatites [1,2]...