Granite is a coarse-grained, igneous rock composed mainly of feldspar and quartz. It is characterized by its granular and crystalline texture. The primary minerals in granite are alkali feldspar and quartz, with the former typically present in higher quantities than the latter. There are two main types of intergrowth structures: (1) distinct phases of alkali feldspar, and (2) intergrowths formed through homomorphic or twin crystal formations. Additionally, calcium feldspar can form solid solutions through polycrystalline twinning, although approximately 80-85% of this component is albite. In petrology, alkali feldspar refers to feldspar that may be part of a solid solution with plagioclase, albite, or even synthetic compounds derived from these minerals. Albite is commonly found in significant proportions within these compositions.
The chemical formula for potassium feldspar (also known as orthoclase or microcline) is KAlSi₃O₈, while sodium feldspar, or albite, has the formula NaAlSi₃O₈. Anorthite, a calcium-rich feldspar, is represented by CaAl₂Si₃O₈. These components can mix in various proportions to form plagioclase feldspars, which are also referred to as calcium-sodium feldspars in mineralogy.
Analyzing the composition of 2485 granite samples worldwide, the weight percentages of major oxides are as follows: SiO₂ at 72.04%, Al₂O₃ at 14.42%, K₂O at 4.12%, Na₂O at 3.69%, CaO at 1.82%, FeO at 1.68%, Fe₂O₃ at 1.22%, MgO at 0.71%, TiO₂ at 0.30%, P₂O₅ at 0.12%, and MnO at 0.05%. The mineral composition varies depending on the type of granite, and some varieties may contain pyrite or amphibole. Granite is known for its hardness, density, strength, and resistance to weathering, corrosion, and abrasion. It also has low water absorption and retains its color for over 100 years, making it an ideal material for construction. However, it is not highly heat-resistant.
Granite is classified into different grades based on factors such as color, pattern, luster, structure, and overall quality. In Taiwan, the Bureau of Minerals under the Ministry of Economic Affairs categorizes granite into six groups: black, brown, green, gray, light red, and deep red. This classification helps in identifying and utilizing granite for various applications in architecture and design.
For this Blue SMD LED, we can package with single chip 3528 SMD LED or 2 chips 3528 SMD LED , and the power can be 0.1W 3528 blue SMD LED, 0.06W 3528 blue SMD LED, 0.2W 3528 blue SMD LED, 0.5W 3528 blue SMD LED and so on.
3528 blue SMD LED is deeply loved by their users because of the small size and the high bightness.
In this catalog, we mainly introduce the 3528 blue SMD LED.
The voltage of the 3528 blue SMD LED is between 2.8-3.5V.
For this Blue SMD LED, we can package with single chip 3528 SMD LED or 2 chips 3528 SMD LED , and the power can be 0.1W 3528 blue SMD LED, 0.06W 3528 blue SMD LED, 0.2W 3528 blue SMD LED, 0.5W 3528 blue SMD LED and so on.
3528 blue SMD LED is deeply loved by their users because of the small size and the high bightness.
It is often used in LED lighting, LED Lamps, LED backlight, LED panel lights, LED furniture, grow light LED, fill light LED, LED aperture and other lighting products.
In this catalog, we mainly introduce the 3528 blue SMD LED.
The voltage of the 3528 blue SMD LED is between 2.8-3.5V.
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