Choosing jewelry Which is better gold or platinum

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Choosing jewelry Which is better gold or platinum

When buying jewelry is often a dilemma what to choose – gold or platinum . We list the main characteristics of speaking in favor of platinum.

1. Rarity. Ratio for the year produced platinum and gold is 1 to 25 (of the year produced 200 tons of platinum , and the average size of gold production – 2500 tons)

2 . Cost . At a cost per gram platinum rhodium second only , but it in the jewelry industry is not used. This is how the production and location of deposits of platinum . The average platinum worth 2-3 times more gold.

3 . Nobility of the metal. Due to its physical properties , Platinum allows to make products with a high percentage of the precious metal – up to 95 %. That is a sample platinum jewelry – 950 , while that of gold , due to the high brittleness of the pure metal , highest purity products – 750. But the most common products are 585. Purity indicates how many extraneous metals contained in the product . Thus, in a platinum product their share of only 5%.

4 . Weight of metal. Bulk density of platinum – 21.5 g/cm3 , while gold – 19.32 g/cm3. As a result, products made ​​of platinum are more severe for the same amount .

5 . Strength. Compared to products made of gold, platinum rings are deformed easily. They are extremely difficult to scratch or damage . This makes reliable platinum precious stone . Durability gold products give impurity metals .

6. Plasticity. Unlike gold platinum high ductility . For example, a gram of platinum wire is stretched to a length of up to 2 kilometers. While gold, the same weight can be spread out over 3 kilometers.

7. Chemical resistance . One of the main properties of platinum as the precious metals and the majority is the chemical inertness. Action Environmental platinum is not a destructive nature. Platinum does not dissolve when exposed to strong acids and alkalis . Needed to dissolve the platinum “royal ” vodka – a mixture of the strongest acid : nitric and hydrochloric .

8. Refractoriness . Among the platinum metal has a very high melting temperature – 1769 degrees (gold melts at 1339 degrees)

9. Biological inertness . Wearing a long platinum products can not cause allergies due to low content of impurities . In gold jewelry fraction of impurities can reach 25 %, and nickel is often used in this capacity, is capable of causing metallosis .

10 . Color. Silvery white platinum color blends perfectly with diamonds. White gold – an alloy that may eventually turn yellow .