Process of Casting silver Jewellery
A two-step process, investment casting, produces small, complex shapes. Most castings, especially large ones, are made in sand molds. Permanent metal molds are used to make many small, simple parts; shell molding gives greater accuracy for a large volume of semi precision parts.
Molten silver is poured into the cavity and allowed to solidify. Sand, mixed with a binder to hold it together, is pressed around a wooden pattern that leaves a cavity in the sand. Wax or plastic replicas of the parts are molded in accurate metal molds. Top of the line casting equipments are utilized to produce the silver jewellery. When the whole mold is heated, the replica melts, leaving behind a cavity into which silver is poured.
The color is the greatest difference in the metals
The color is the greatest difference in the metals. The elements which include over one hundred known minerals are a diverse class when taken as a whole. The non metals are extremely diverse. Due to the diversity of the non metals subclass there is most of this diversity.
The non-metals include some elements known as semi-metals who share some properties with metals but differ in other characteristics. The hardest mineral known to man is from this subclass, as well as one of the softest. The Metals Subclass and related metal alloys contains metals whose properties are rather similar due to the common way in which they crystallize and bond.
Silver is always in fashion
Because silver jewellery is trendy and simple it has been always in fashion. Sterling silver can be enjoyed a life time. It being a precious metal it is more affordable than gold and platinum. Always keep your ornaments separately, preferably in a cloth pouch or jewellery box in order to prevent scratching and tarnishing. When silver reacts with sulfur or hydrogen sulfide in the ambient air its normal for silver to tarnish.
To make silver ornaments last a life time you must have to follow simple steps. It can be easily removed by polishing with cloth or solutions specifically formulated for silver cleaning, which can be found in any hardware store. Always avoid exposing it to household chemicals, such as bleach or chlorinated water.