Sun Moon Star Crystal House (Silver) http://www.sunmoonstar.com.hk

Chinese Name：銀
English Name：Silver
Chemical Composition：Ag
Crystal System：Cubic
Hardness：2.4–3.0
SG：10 - 12
Crystal Habit：Usually in the form of Needle, fine, dendritic or string like format
Colour：Silver-white
Remarks：Native silver is very soft, with the hardness of 2.4 - 3.0. It has to be alloyed with other metals, to make it tough enough for use in jewellery.
The purity of silver is defined as its 'fineness', we call it silver alloys, which are measured for their purity as a degree of fineness out of 1000. There're 2 mostly use standard for silver jewelry, one is 958 (Britannia) and the other is 925 (Sterling) in which Sterling silver is the standard for silverware and has been used since the 14th century.

How to tell if a metal is 925 Sterling Silver?
Most of the jewelry are stamped with a series of marks to indicate the type and fineness of the metal used. This is called an assay or hallmark. You may find a small embossed mark as "S925" or "925" on your silver jewelry

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Fineness	Silver Hallmark
999
958 (Britannia)
925 (Sterling)
800

Functions：
1.	Helps a person to calm down, relief from nervous emotion & pressure.
2.	Silver representing wealth. It's a kind of "wealthy stone"
3.	Acts as a charm for protection, to ward off evils.

General care for Silver Jewelry：

1.	You can avoid tarnish by wearing your jewelry often, as the oils on your skin will "clean" the silver and keep it looking shiny.
2.	To avoid tarnishing of your silver jewelry, make sure it is stored airtight, as humidity is an enemy to precious metals.
3.	If humidity is a problem, you can place a piece of chalk, a packet of activated charcoal, or a package of silica gel in your jewelry box. (for silver items)
4.	For cleaning silver jewelry. You can use silver "dip" or silver Polishing Cloth
5.	Silver Polishing Cloth for Sale

	Address: B26, 1/F, San Po Kong Plaza, 33 Shung Ling Street, San Po Kong, Kowloon, HK
	Sun Moon Star Crystal House. All Rights Reserved. Designed by Sun Moon Star Design House