Semi Precious Stones Wholesale Suppliers, Manufacturers & Distributors

Sep-21-22

Kyanite

(1.0)

Ask for price

MOQ: MOQ: Not Specified

Krishna Enterprises ( Domestic And International Trade)

Supplier From South West Delhi, Delhi, India

Supplier Of Aquamarine Gemstones | Semi Precious Stones | Blue Sapphire Gemstones (Neelam) | Ores & Minerals

Krishna Enterprises ( Domestic And International Trade)

Supplier From South West Delhi, Delhi, India

Supplier Of Aquamarine Gemstones | Semi Precious Stones | Blue Sapphire Gemstones (Neelam) | Ores & Minerals

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%

Dec-21-22

Sea Pearls Salt Water

(1.1)

$1.50K - $1.90K

MOQ: MOQ: Not Specified

Camp Jenil Serenity Beach Hometel

Supplier From Rizal, Palawan, Philippines

Supplier Of Artificial Jewellery | Pearl Gemstones (Moti) | Semi Precious Stones

Camp Jenil Serenity Beach Hometel

Supplier From Rizal, Palawan, Philippines

Supplier Of Artificial Jewellery | Pearl Gemstones (Moti) | Semi Precious Stones

Cultured sea pearls jewelry fashion designed
Fresh sea water pearl in the shell per box for necklace.
Fresh sea Pearls without designed accessories.
Advance Payments via Western Union money transfer or via money gram or bank wire transfer transaction for bulk orders
Shipping amount per item from will. Be separate payments
$40 00 per item

GOLD Member

Jun-17-21

Al Maham International Group

(1.6)

Supplier From Doha, Qatar

Light cycle oil (lco) oil and gas, light cycle, oil products, gas products, natural gas, hydrogen, gas meter, gasturbines, crude oil, blco, biodiesel, diesel, fuel, fuel oil, fuels, jet fuel, d2, pet coke.afghan pine eldar pine urea . dried fruit. gemstone ,emerald ,minerals, medical equipment, medical syringes, syringes with needle, syringe needle .trade in medical equipment, trade in medical instruments..

Dec-02-15

Almandine Garnet

(1.3)

$240

MOQ: MOQ: Not Specified

Mursalin Khan Sons

Supplier From Islamabad, Pakistan

Supplier Of Semi Precious Stones | Other Ores & Minerals

Mursalin Khan Sons

Supplier From Islamabad, Pakistan

Supplier Of Semi Precious Stones | Other Ores & Minerals

1mm rare size almandine crystals .
Location afghanistan
Quantity: 7kg

7kg.1mm size

Apr-27-23

Zircon

(1.0)

$2.00K

MOQ: MOQ: Not Specified

Mining Agung Persada

Supplier From Sekadau, Kalimantan Barat, Indonesia

Supplier Of Ores & Minerals | Semi Precious Stones | Zircon Ore

Mining Agung Persada

Supplier From Sekadau, Kalimantan Barat, Indonesia

Supplier Of Ores & Minerals | Semi Precious Stones | Zircon Ore

zircon as a material for industrial ceramics, refractories (furnace or reactor lining materials that are resistant to high heat), to dyes.

the use of zircon is developing in a number of industrial sectors, including: ceramic Industry, PSZ (Partially Stabilized Zirconia) glass industry, Zircon flour industry (micronized zircon), zirconium chemical industry, Refractory brick industry Printing sand industry.
the use of micronized zircon or zircon powder in ceramic products accounts for almost half of the national consumption of this mineral. In the manufacture of ceramics, zircon flour serves as an opaque glaze for household items and ceramic tiles. Meanwhile, in the glass industry, zirconia (fused zircon) is used to produce glasses with special compositions, such as optical glass, fiber glass, color TV glass, and so on.

In addition, the use of zircon is quite high in the metal industry. This mineral is used in the metal industry because it has heat-resistant properties. In practice, zircon flour is used to coat metal products, such as steel and bone iron, especially dry coating to produce kitchen and bathroom products. The use of zircon flour is also applied in the production of refractory bricks used to line steel or glass smelting furnaces. Zircon is also used in the nuclear sector. In this field, zircon is used as a cladding material for nuclear reactor fuel. As a coating material, zircon can withstand very high heat which is the result of fusion reactions in nuclear reactors.

21873 Semi Precious Stones Suppliers

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Dec-06-22

Stones

(1.0)

$70

MOQ: MOQ: Not Specified

Zhengzhou Hongcheng Superhard Materical Co., Ltd

Supplier From Zhengzhou, Henan, China

Zhengzhou Hongcheng Superhard Materical Co., Ltd

Supplier From Zhengzhou, Henan, China

Honing refers to a set of stones (sticks) assembled on the honing head put pressure on the work-Piece along the radial, and through rotating and moving back and forth for precision honing machine.

When honing high hardness and toughness materials, the Diamond /CBN Efficiency of honing stone( stick) is 3-75 times higher than that of ordinary abrasive stone, and the honing efficiency of ordinary materials is also improved about 10 times. since Diamond/CBN honing stone (stick) wear is less, the shape retention is better, therefore, the higher honing accuracy and economic effect can be obtained.

Diamond honing stick is used to process hard and brittle materials, such as honing high carbon steel, cast iron, cemented, carbide, etc.

honing stick mainly used for honing high strength alloy steel, tool steel, stainless steel heat-resistant alloy steel.

Customized is OK

Jun-10-16

Marino Gems Limited

(2.1)

Supplier From London, England, United Kingdom

Semi precious gemstones like Zambian amethyst.

Supplier Of Semi Precious Stones

Jul-25-18

Pedragosa Silva Pablo Hugo

(2.1)

Supplier From Artigas, Uruguay

Semi precious stones in the rough or industrialized amethyst, agates, citrine, rock crystal.Sale stones amethyst and agates - export, packaging, logistics, air transport, shipments

Service Provider Of Printing & Packing | Logistic Services | Importing/Exporting

Supplier Of Semi Precious Stones | Shipping, Air, Cargo & Railways

GOLD Member

Jul-02-24

Nexease International Llp

(3.4)

Supplier From Ahmedabad, Gujarat, India

Sugar, yellow corn, soybean, copper cathodes, ready to eat food, e bikes, semi precious stones, iron ore, manganese ore, steam coal, silica sand, aluminium ingots, en590, d6, petroleum by products, railway r65, steel rebars, hot rolled steel sheets, billet.Sourcing agent, high sea trading