Puruhutika Indian Intl.

Green Emeralds and Blue eclasias

Natural pearls are composed entirely of nacre, a combination of aragonite and an organic binder called conchiolin. In an effort to protect itself from an intruder, the oyster coats itself with layers of nacre, also known as mother-of-pearl, the same substance it uses for shell building.

Commodity: Collectible EMERALDS, completely ready for sale. Location of good Price: according to the table in the appendix (if the entire batch is purchased in full, the cost will be $ 10 820 000 for the entire batch). Delivery to the port of destination: DAP. Specification: European quality standard. Scope of delivery: The batch size is indicated in the provided table in the appendix, with the possibility of concluding a long-term contract. Packaging: As agreed with the customer. Payment methods: Full prepayment / prepayment of 30% - an additional payment of 70% occurs when the goods are ready in the customs area for shipment to the buyer or Full prepayment /LC (documentary, filled, irrevocable, divisible). All terms of cooperation are considered based on the ICPO application, depending on the volume of the batch, destination, payment, methods. In confirmation of cooperation, please send us an

unheated natural peigon blood mogok ruby GRS certified!

Blue Sapphire comes in many standard shapes like oval, round, emerald, and cushion, and other delicate shapes such as cabochon, and convex dome, you have a lot to choose from adorning your Lehenga to Dungaree dresses.

We have yellow sapphire

We provide all kinds of precious and semi-precious gemstones in all shape, size and colours.

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%