Sun Moon Star Crystal House (Gold) http://www.sunmoonstar.com.hk
SG：15.5 - 19.3
habits in cubic form or octahedron, very rare. Mostly in the
form of beads, nuggets or branches/dendritic.
gold is very soft, with the hardness of 2.5-3.0. It has to be alloyed with other metals, to make it tough enough for use in jewellery, we can also add with different metals in order to create different colour.
The purity of gold is defined as its
'fineness', we call it gold alloys, which are measured for their purity as a degree of fineness out of 1000 or alternatively as carat (ct) fineness also denoted by karat (K). The most widely used gold alloys in jewelry is 18K (750) or 14K (585)
How to tell the fineness of gold alloys from your jewelry?
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 "18K" or "750" on your silver jewelry.
24K (fine gold)
Fancy Colour Gold
Color of Gold Alloys
10% to 20% Nickel, with Copper, Tin, Sometimes with the add with Platinum or Manganese
Gold, Silver, Copper with proper ratio
Silver, Sometimes with the add of Cadmium and Zinc
Copper together with Silver or just Copper
Silver and Copper
Gallium or Indium
Palladium, or (Silver, Manganese and Copper, this is more economic)
Usually comes from high content of Iron, can be as higher as 40% or more
The energy of sun, giving courage and increase self confiderence.
Gold also representing "long life"
Acts as self protection, to ward off evils.
General care for Gold Jewelry：
To maintain the shine of your gold jewelry, wipe your piece with a soft cloth to remove any dirts that build-up from normal wear.
Gold Jewelry may be placed in ultrasonic or steam cleaner. But if it's mounted with gemstones, make sure the gemstones is suitable for this kind of cleaning.
Cleaning Diamond Gold Jewelry: Use lukewarm plain water, mild soap and a soft brush to scrub behind the stone where dirt can collect.
B26, 1/F, San Po Kong Plaza, 33 Shung Ling Street, San Po Kong,