Natural rock (creek stone)
These are natural stones. They are raw, surface-weathered rock samples with irregular shapes and a mixed gray-brown color. Such rocks can usually be divided into three categories: igneous rocks, sedimentary rocks, and metamorphic rocks.
andesite mineral stone
Andesite, a neutral erupting igneous rock with a grayish black or dark gray background color and with white or light gray spots (porphyry). These are usually plagioclase and may also contain dark minerals such as amphibole or pyroxene. Anshan magma is usually formed when the oceanic plate subducted under the continental plate.
meteorite sample
This meteorite contains about 21.3 percent iron and is usually in the form of tiny silver metal flakes scattered in the rock matrix. The samples are usually black in color, and the surface may have weathered iron oxides or other silicate minerals (such as olivine and superbasic pyroxene), often with a molten shell.
Rock 3D Model
a piece of rock
A reef with oyster shells
fault breccia
Fault breccia is formed in the fault zone. They consist of angular rock fragments from rocks on either side of the fault. These angular detritus elements are usually surrounded by cements, usually calcite or siliceous, which are deposited in pores created by fragmentation caused by fault replay.
Limestone limestone
Limestone, also known as calcareous limestone, is a sedimentary rock formed by the deposition of calcium carbonate. It is usually formed in hot springs, rivers, or lakes and is known for its porous and lightweight properties. The formation process of limestone involves mineral rich water flowing over the surface, and as the water evaporates, calcium carbonate gradually deposits, forming a layered rock structure. It is currently housed in the UAIC Museum of Minerals and Petrography.
Rock 3D model
Riverbed gravel
Riverbed gravel
Riverbed gravel
Riverbed gravel
Riverbed gravel
Riverbed gravel
Riverbed gravel
Riverbed gravel
Riverbed gravel
Riverbed gravel
Rocks in the grassland
Granite porphyry
Granite porphyry belongs to acidic rocks and is variegated; Spotted structure; Blocky structure; The main mineral composition is potassium feldspar and quartz. The mineral composition of granite porphyry is the same as that of the corresponding plutonic rock - granite, but it has a porphyritic structure, indicating that it is a shallow plutonic rock.
Feldspar sandstone
Feldspathic sandstone is a sedimentary rock mainly composed of various sand particles cemented together, with particle diameters ranging from 0.05-2mm. The sand content should be greater than 50%, and the structure is stable. It usually appears light brown or red and mainly contains silicon, calcium, clay, and iron oxide. The vast majority of sandstone is composed of quartz or feldspar.
Surface granite
Granite belongs to intrusive rocks in acidic (SiO2>66%) magmatic rocks, which is the most common type of rock in this category, mostly in light flesh red, light gray, gray white, etc. Medium coarse grain, fine grain structure, blocky structure. There are also some structures such as speckled structures, spherical structures, and gneiss like structures. The main minerals are quartz, potassium feldspar, and acid plagioclase, while the secondary minerals are biotite, amphibole, and sometimes a small amount of pyroxene. There are many types of accessory minerals, including magnetite, garnet, zircon, apatite, tourmaline, fluorite, etc. Quartz content is the highest among various magmatic rocks, ranging from 20% to 50%.
Volcanic breccia
Volcanic breccia is a conglomerate formed by volcanic activity with angular and sub angular gravel content>50%. The diameter is generally greater than 4 millimeters, and the lava fragments contained are mostly tuff, with fewer glass fragments and whole stones. It is mainly composed of volcanic breccia with a particle size of 2-64 millimeters, and also contains breccia from other rocks and a small amount of mineral crystal fragments such as quartz and feldspar.
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