How do you tell the difference between slate and sandstone? What are the different classifications o

The simplest thing is to distinguish from the outside:

Slate is layered and contains sericite and is relatively smooth, while sandstone is granular and rough stone.

Rock is a kind of metamorphic rock with a plate-like structure and basically no recrystallization, and the original rock is argillaceous, silty or neutral tuff, which can be peeled into thin sections along the slab direction. The color of slate varies depending on the impurities it contains.

Sandstone is formed from quartz grains (sand) and is structurally stable, usually light brown or red, containing mainly silicon, calcium, clay, and iron oxide. Sandstone is a sedimentary rock, mainly cemented by sand grains, of which the sand content is greater than 50%. The vast majority of sandstone is made up of quartz or feldspar.

Main ingredient A Quartz content more than 52%; b Clay 15% or so; c Goethite 18%; d More than 10% of other substances.

The world's sandstone has been mined and utilized, including Australian sandstone, Indian sandstone, Spanish sandstone, Chinese sandstone, etc. Among them, the most popular color and pattern for architects is Australian sandstone. Australian sandstone is an ecological and environmentally friendly stone, and its products have the characteristics of no pollution, no radiation, no reflection, no weathering, no discoloration, heat absorption, heat preservation, and non-slip.

Hello they come from different places, slate is layered and contains sericite, which is relatively smooth, sandstone is granular and rough stone.

Rock slabs. Due to the different origins, uses, specifications and thicknesses, there will be different classifications of rock slabs, specifically:

1) According to the origin of rock slabs, there are two categories: domestic and imported; Domestic rock slabs started relatively late, and domestic rock slabs will rise in 2020; If you import rock slabs, there are more large-size rock slabs, such as high-grade rock slabs from Italy and Spain, and low-end rock slabs from Turkey and India, which are relatively low; 、

2) According to the specifications and uses of rock slabs, they are divided into large rock slabs and medium rock slabs, and large rock slabs can be used for walls, floors, and background walls.

and other large spaces, it can also be used for large furniture countertops, door panels, etc.; Zhongyan slabs are mostly used in small spaces such as furniture countertops, cabinet countertops, and bathroom countertops.

3) According to the thickness and use of the rock slab, it is divided into thick rock slab and thin rock slab, and the thickness of the thick rock slab is mostly more than 9mm, such as 12mm, 15mm, 20mm, etc., which is mostly used in desktop, floor and other spaces; The thickness of thin rock slabs is less than 6mm, such as 3mm, 5mm, 6mm, and is mostly used in door panels, exterior walls and other spaces.

1. Rock slabs are classified according to their thickness, which can be divided into:

1. Thick rock slab: generally the thickness is 9mm or above, such as 12mm, 15mm, 20mm.

2. Thin rock slab: the general thickness is 6mm or below, such as 3mm, 5mm, 6mm.

2. Rock slabs can be classified according to specifications and uses, which can be divided into:

1. Medium rock slab: refers to the small total area of rock slab, which is generally used in small spaces such as furniture countertops, cabinet countertops, and bathroom countertops.

3. Rock slabs can be divided into imported rock slabs and domestic rock slabs according to the classification of origins.

Distinguish from appearance:

Sandstone: Sandstone is rich in color, mainly yellow tones, but also reddish-brown, gray-green, gray-yellow, etc.

Distinguish from the touch:

The sandstone is a clastic rock with a rough appearance, and there is an obvious grain texture on the surface of the sandstone.

First of all, appearance.

1. Color. Sandstone is rich in color, mainly yellow, but also reddish-brown, gray-green, gray-yellow, etc.

Sometimes there is sandstone with gray tones, and then something else is needed.

2.Touch. The sandstone is a clastic rock, with a rough appearance, and there is an obvious grain texture on the surface of the sand, and a closer look can see that it is obviously composed of sand grains.

3.Hardness. The hardness of sandstone can be high or very low.

Weathered sandstone.

4.Geomorphological features.

Because of its hard texture, sandstone is easy to form tall steep cliffs with sharp edges and corners, which can refer to the rocky cliff landform in the Taihang Mountains.

Or the Danxia landform can be stripped of sand grains.

The composition of argillaceous siltstone is mainly silt, containing a small amount of clay minerals and cement, and the main composition of sandy mudstone is clay minerals, containing a small amount of sand.

The particle size is different.

The sandstone structure is granular, the water permeability is good, the sand particle size is 1 16-2mm, and the mudstone is a kind of clay rock, which is formed by the clay material after compaction, dehydration and recrystallization.

It is composed of tiny minerals, with a particle size of 1 256 mm, with a page-like or flake-like bedding, which is easy to crack into fragments when hit with a hard object, and has poor water permeability.

Feel the texture is different.

The fracture of argillaceous sandstone is rougher than that of sandy mudstone, and the sandy sandstone is stronger, and the sandy mudstone is more delicate and easy to soften after immersion.

The particle size of the silt debris is in. Those that are finer than silt are called mud. The sedimentary rock, which is mainly composed of siltstone detrita, is siltstone.

The clastic composition of siltstone is generally relatively simple, mainly quartz, feldspar and cuttings are rare, and sometimes contain more muscovite. The gap fillers are calcareous, iron and clayey.

Quartz, the main component of sandstone, mainly accounts for more than 52%, then clay is about 15%, pyrophylrite is about 18%, and then salt is sprinkled, and it can be divided into quartz sandstone, feldspar sandstone and lithic sandstone according to the performance environment.

How to distinguish sandstone, quartz sandstone material composition, detrital composition, mineral debris (quartz detrital, feldspar debris, mica chlorite debris, heavy mineral debris), rock detrital gap filler composition, heterogeneous base, cementation.

Sandstone Identification:1The composition of argillaceous siltstone is mainly silt, containing a small amount of clay minerals and cement, and the main composition of sandy mudstone is clay minerals, containing a small amount of sand.

2.The size of the grain is different Sandstone structure is granular, good permeability, its sand particle size is 1 16-2mm, mudstone is a kind of clay rock, formed by clay material after compaction, dehydration, and recrystallization.

Sandstone, also known as sandstone, is composed of condensed crystallization of mineral silica particles. Sandstone silicon is made of calcium carbonate and iron oxide plus a mixture of condensation to form durability and strength, and the hardness of sandstone in some areas even exceeds that of granite, so the construction is more time-consuming. Due to its coarse grains, sandstone is particularly strong and hard, which is suitable for large-scale outdoor stone carvings.

First of all, appearance.

1. Color. Sandstone is rich in color, mainly yellow, but also reddish-brown, gray-green, gray-yellow, etc.

Sometimes there is sandstone with gray tones, and then something else is needed.

2.Touch. The sandstone is a clastic rock, with a rough appearance, and there is an obvious grain texture on the surface of the sand, and a closer look can see that it is obviously composed of sand grains.

3.Hardness. The hardness of sandstone can be high or very low.

Weathered sandstone.

4.Geomorphological features.

Because of its hard texture, sandstone is easy to form tall steep cliffs with sharp edges and corners, which can refer to the rocky cliff landform in the Taihang Mountains.

Or the Danxia landform can be stripped of sand grains.

Hello, here's how to identify sandstone.

1. Color. Sandstone is rich in color, mainly yellow, but also reddish-brown, gray-green, gray-yellow, etc.

Sometimes there is sandstone with gray tones, and then something else is needed.

2.Touch: Sandstone is clastic rock, rough in appearance, and has obvious grain texture on the surface of the hand, and if you look closely, you can see that it is obviously composed of sand grains.

3.Hardness Sandstone can be high or very low.

Weathered sandstone.

4.Geomorphological features.

Because of its hard texture, sandstone is easy to form tall steep cliffs with sharp edges and corners, which can refer to the rocky cliff landform in the Taihang Mountains.

Or the Danxia landform can be stripped of sand grains.

What are the two types of rocks, salt and limestone?

Sandstone is a sedimentary clastic rock.

Sandstone is a sedimentary clastic rock composed of components such as quartz and feldspar, which has been weathered in many hilly areas. Corrosion, transportation and other geographical phenomena are piled up. In terms of its components, there are debris and gap fillers combined.

After natural treatment and subsequent processing, it can achieve the characteristics of sound insulation, wear resistance, no melting, and easy cleaning. Sandstone extracted from nature is particularly environmentally friendly and meets the requirements for use.

Characteristics and colors of sandstone

Characteristics of sandstone:

Sandstone is formed by the accumulation of rocks in the basin through weathering, denudation and transport. The rock is made up of two parts: debris and gap filler. In addition to quartz and feldspar, detritals include muscovite, heavy minerals, cuttings, etc.

Common cementations are siliceous and carbonate cementation: heterogeneous components mainly refer to finer clay or silty materials deposited at the same time as the detritus. The composition and structure of the gap filler reflect the geological tectonic environment and physicochemical conditions under which the sandstone was formed.

According to its sedimentary environment, sandstone can be divided into three categories: quartz sandstone, feldspar sandstone and lithic sandstone. Sand and sandstone make up the main reservoirs of oil, gas and groundwater.

Sand and sandstone can be used as abrasives, glass raw materials, and building materials. The sand layer and sandstone of a certain occurrence are rich in placer gold, zircon, diamond, ilmenite, rutile and other placers.

The color of the sandstone:

The color of sandstone depends on the composition and can be any color, the common ones are brown, red, gray and white. Some sandstones are resistant to weathering but are easy to cut, so they are often used as building materials and paving materials.

For example, the grains in quartz sandstone are relatively uniform and hard, so sandstone is also often used as grinding tools. Due to its better permeability, sandstone surface aquifers can filter out contaminants and resist pollution better than other stones such as limestone.

The difference between mudstone and sandstone lies in different compositions, different particle sizes, different feel textures, and different application pathways.

1. The ingredients are different.

The argillaceous siltstone is mainly composed of silt, containing a small amount of clay minerals and cements, and the sandy mudstone is mainly composed of clay minerals with a small amount of sand.

2. The particle size is different.

The sandstone is a kind of clay rock, which is formed by the compacting, dehydration and recrystallization of clay materials. It is composed of tiny minerals, with a page-like or flake-like bedding, which is easy to crack into fragments when hit with a hard object, and has poor water permeability.

3. The texture of the hand is different.

The fracture of argillaceous sandstone is rougher than that of sandy mudstone, and the sandy sandstone is stronger, and the sandy mudstone is more delicate and easy to soften after immersion.

4. Different application paths.

Silt is mainly used in the construction industry, and can also be used to make ceramic tiles, and mudstone can be used in brick making, pottery and other industries.

Types of mudstone:

The general classification of argillaceous rocks is mainly based on the degree of consolidation, structure, structure, mineral composition, chemical and organic mixtures and color of argillaceous rocks. It is divided into silt, silty mudstone, calcareous mudstone, siliceous mudstone, iron mudstone, carbonaceous mudstone, manganese mudstone, etc. <>

The difference between slate and limestone! Hello, I am glad to answer for you<> the difference between pro-slate and limestone is as follows: Limestone, also known as limestone, is carbonate rock with hand calcite as the main component.

Sometimes it contains dolomite, clay minerals and detrital minerals, gray, gray-white, gray-black, yellow, light red, brown-red and other colors, the hardness is generally not large, and there is a violent chemical reaction with dilute hydrochloric acid. It belongs to sedimentary rocks according to its genetic classification. Limestone, carbonate with calcite as the main component.

Slate is a rock with a plate-like structure and basically no recrystallization, which is a metamorphic rock, and the original rock is argillaceous, silty or neutral tuff, which can be peeled into thin sections along the slab direction. The color of slate varies depending on the impurities it contains. Slate is a characteristic tabular structure, and shallow metamorphic rocks are formed by clayey, silty sedimentary rocks or medium-acid tuff rocks, and sedimentary tuffs by slight metamorphism.

Hope mine can help you <>

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