Ceylon sapphire, blue sapphire.
Emerald and sapphire .Manufacturer & Exporter
Blue sapphire, yellow sapphire, topaz.Clearing agent
Sapphire Crystal Window Sapphire windows are used in some non-ornamental applications, including infrared optical components, such as in scientific instruments; high-durability windows and movement bearings;Due to sapphire's remarkable hardness (third hardest mineral, right behind diamond and moissanite). Features of Sapphire Crystal 1. High-hardness - abrasion resistance 2. Transparency - in the range from ultraviolet to infrared light (0.15 - 5.5 �µm) 3. Chemical resistance and heat resistance - resist almost all kinds of acid and alkaline, heat up to 2000 �ºC. 4. Suitable for the application of insulation property required. Sapphire Crystal Property Crystal structure: Hexagonal Lattice: a=4.785�?, C=12.991�? Density: 3.98g/cm3 Transmission Range: 150-5500nm Melting Point: 2040�°C Specific Heat: 0.418 W.s/g/K Thermal Conductivity: 25.12 W/m/K Thermal Shock Resistance: 790 W/m Thermal Expansion Coefficient: 5.8x10E-6/K dn/dT: 13x10E-6/K @633nm Hardness: 9 Mohs Refractive Index: 1.83 @0.26mm, 1.76 @0.63mm, 1.58 @5.57m Sapphire Crystal Applications - UV and IR Optics - Windows for High Temperature and Pressure, Corrosion Resistance, Abrasion Resistance - Heat Sink and Thermocouplers; Semiconductor Wafer Carriers - Electrical Insulators - Thin Film Deposition - Transparent Electronic Substrate - Silicon on Sapphire Wafers; Superconductor Substrate Sapphire Crystal Window Specifications Diameter Tolerance(mm): +0.0/-0.2 (General), +0.0/-0.1 (High Precision) Thickness Tolerance(mm): �±0.2 (General), �±0.05 (High Precision) Clear Aperture: >75% (Small Size), >90% (Large Size) Parallelism: 3 min. (General), 10 sec. (High Precision) Surface Quality: 80/50 (General), 40/20 (High Precision) Flatness (per 25mm@633nm): �»(General), �»/4 (High Precision) Bevel (face width x 450 0)
Yellow sapphire.
Blue sapphire.
Blue sapphires.
Ruby, spinel, amethyst, sapphire, garnet, rose quartz, quartz, aquamarine, topaz, jade, moonstone gemstones..
Wall type. An inexpensive barometer for elementary study of weather, the dial shows mercury pressure equivalent in both English and mill bar scales. It has a hook for suspension and a stationary hand for comparison with previous reading. The movement is housed in a round plastic case.
Natural gemstones - royal blue sapphires, pink sapphires, padpardscha sapphires.
Name : Mercurial Desk Type Sphygmomanometer Place of Origin : China Brand Name : OEM Model Number : MK01- 305 Power Source : Manual Warranty : 1 Year After-sale Service : NONE Power Supply Mode : Plug-in Material : Metal, Steel Shelf Life : 2 years Quality Certification : CE Instrument classification : Class II Safety standard : None Type : Blood Pressure Monitor Specification : Cotton Cuff+Latex Bladder Application : Arm Use Advantage : Manufacturer Certificate : CE,ISO, Carton Size : 34*23.5*37cm G.W/N.W : 12/11 KG Usage : Home &Hospital use
Banana chips, jack fruit chips, rice, mango, frozen porotta, frozen tapioca, frozen foods, edible snacks, frozen tapioca, frozen coconut, other frozen products, fresh coconut, fresh mango, alphonso, banganapilly, sindhoor, happus, thottapuri, neelam, de husked coconut, coconut milk, dessicated coconut, coconut oil, virgin coconut oil cold pressed, grated coconut, shredded coconut, jackfruit, frozen foods, porotta, malabar porotta, paratha, veech roti, kothu porotta, chapathi, wheat porotta, idli, grated coconut, shredded coconut, tapioca, cassava cuts, vegetable puffs, unniyappam, sambar, coconut cuts, jack fruit cuts, banana fry, idiyappam, family porotta, matta rice, jaya rice, palakkad matta, kuruva rice, basmati rice, biriyani rice, ghee rice, ponni rice, brown rice, red rice and snacks like banana Chips, Cassava chips,Mixture, Peanut Candy , Sesame Candy, Pakkavada,Rice murukku, Tamarind , Garcinia cambogia , Kudampuli.
Yellow sapphire gemstone.
Blue sapphire gemstone.
Yellow sapphire & all gems.
Kyanite is a typically blue silicate mineral, commonly found in aluminium rich metamorphic or sedimentary Rocks.Kyanite is a member of the alumino-silicate series, which includes the polymorphs, alusite and sillimanite, which have the same chemical composition (Al2O3.SiO2) as alusite and sillimanite but it is distinguished from those two minerals by its physical properties. Refractory Materials : Refractories are heat-resistant materials that constitute the linings for high-temperature furnaces and reactors and must be able to withstand high temperatures, mechanical wear, thermal shock and chemical corrosion. Kyanite is used in refractories sometimes in raw form and mostly in calcined form. 1. Raw kyanite: Kyanite has high expansion coefficient. Moreover, its calcination into mullite is also accompanied by a significant expansion in volume (20%). Raw kyanite as a refractory material is thus particularly beneficial when shrinkage from other materials and binders needs to be compensated for. 2. Calcined kyanite: Kyanite calcined to mullite is widely utilized in refractory products. Mullite exhibits excellent refractory properties like thermal stability (it is stable upto 1810 C), thermal shock resistance, creep resistance, and high hot strength and chemical corrosion resistance. Refractory bricks made from calcined kyanite possess outstanding: Higher modulus of rupture. Lower co-efficient of expansion. Increased firing range and temperature. Increased durability, about three times that of ordinary bricks. More resistance to salt attacks. Very low co-efficient of spalling. Kyanite refractories find application used in glass industry as well as various metallurigical industries (except steel metallurgy, as mullite refractory bricks are corroded by iron slag and are not highly resistant to metallic oxides). Kyanite has been a supplier of raw kyanite for many years. Our kyanite is high in purity, free from iron oxide, silica, bases and alkalis. These impurities considerably reduce the softening point of mullite and thus affect the refractory properties. kyanite is often associated with the mineral corundum. This is advantageous as it reduces the percentage of free silica when calcined. All in all. Specfications : Al203:- 35-52% Fe2o3:- 1-5%
Natural medium dark blue sapphire.
Burned and un burned yellow sapphire.
Blue-green-algae-(skipper-khad).
Sapphire blue, green, busparagam and more stones.
