Geology Science

Quartz is one of the Earth's most abundant and versatile minerals. Known for its durability, wide variety of colors, and stunning crystalline structures, quartz...

Jasper is a variety of chalcedony, which itself is a microcrystalline form of quartz. It is primarily composed of silicon dioxide (SiO2), often with...

Gemstones have long captivated humanity with their beauty, rarity, and historical significance. Across the globe, some of the world’s most prestigious collections of precious...

Sedimentary structures and textures refer to the physical features and arrangements of sedimentary rocks that provide information about the conditions in which they were deposited. These structures and textures can provide important clues about the nature of the depositional environment, the nature of the sediment transport process, and the history of the sedimentary basin. They are used by geologists to interpret the history and evolution of sedimentary deposits. Sedimentary structures can range in scale from millimeters to meters or more, and include features such as bedding planes, cross bedding, ripple marks, mud cracks, and fossils, among others. Sedimentary textures refer to the size, shape, sorting, and arrangement of sediment grains, and can include features such as grain size, shape, and orientation, as well as sorting and packing of the grains within the sedimentary rock.

Hydrothermal deposits are mineral deposits that are formed from the precipitation of minerals dissolved in hot water that circulates through rocks. Hydrothermal fluids are...

Laboratory tests on soil and rock samples play a crucial role in geotechnical engineering. They are performed to determine the physical, mechanical, and hydraulic...