Test Gold by Ceramic Plate Test
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- Category: Tungsten Information
- Published on Friday, 15 November 2013 10:23
This is an easy way to tell if your gold is fool’s gold. Bear in mind that your item may end up scratched.
Find an unglazed ceramic plate to use. If you don’t have this, you can purchase a random piece of unglazed ceramic from a home improvement store.
Drag your item across the surface. A black streak means your gold is not real, whereas a gold streak indicates your item is genuine.
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Test Gold by Density Test
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- Category: Tungsten Information
- Published on Friday, 15 November 2013 10:21
There are very few metals denser than gold. The density of pure 24K gold is about 19.3 g/ml, which is much higher than most other metals. Measuring the density of your items can help you determine if your gold is real. As a rule of thumb, the higher the density, the purer the gold. Make sure to perform the density test on gold that has no gemstones of any kind attached. See the warnings below for important information about the density test.
1.Weigh your piece of gold. A jeweler can normally do this for you for free if you don’t have your own scale. You will need the weight in grams.
2.Fill a vial with water.It’s helpful if the vial has millimeter markings on the side, since that will make it easier for you to read the measurements for this test.
It doesn’t matter how much water you use as long as you don’t fill the vial to the top, since the water level will rise once you immerse the gold in it.
It’s also important to note the exact amount of the water level before and after immersion.
3.Place your gold in the vial. Take note of the new water level and calculate the difference between those two numbers in milliliters.
4Use the following formula to calculate density: Density = mass/volume displacement. A result close to 19 g/ml indicates either real gold, or a material with a density similar to gold. Here is an example calculation:
Your gold item weighs 38 g and it displaces 2 milliliters of water. Using the formula of [mass (38 g)]/[volume displacement (2 ml)], your result would be 19 g/ml, which is very close to the density of gold.Bear in mind that different gold purity will have a different g/ml ratio:
14K – 12.9 to 14.6 g/ml
18K yellow – 15.2 to 15.9 g/ml
18K white – 14.7 to 16.9 g/ml
22K – 17.7 to 17.8 g/ml
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Test Gold by Magnet Test
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- Category: Tungsten Information
- Published on Friday, 15 November 2013 10:18
This is an easy test, but it’s not an all-encompassing or fool-proof way to determine whether your gold is real. Something as weak as a fridge magnet will not be useful, but stronger magnets that you can find in specialized hardware stores or in common objects such as women’s purse latches, children’s toys, or even in old unused hard drives will be strong enough to perform this test.
Hold a magnet up to the item. Gold is not a magnetic metal, so if it pulls towards, or sticks to the magnet, it’s fake. However, just because it doesn’t react to the magnet doesn’t mean it is real, as non-magnetic metals are used in counterfeit pieces as well.
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Tibet's Development to Dilute Shares Soared Tips Investment Risk
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- Category: Tungsten Information
- Published on Friday, 15 November 2013 10:10
Tibet's development announcement will be able to Xichang Chi Chi energy Rare Earth Industry and Johnson established a joint venture of Johnson thick to Rare Earth Mining Co., Ltd., the company holding 26.67%.
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Test Gold by Bite Test
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- Category: Tungsten Information
- Published on Thursday, 14 November 2013 11:40
We have all seen a movie where a prospector bites down on a piece of gold to test it. We also see Olympic athletes bite on their “gold” medal when they receive it. Whether that is of any use is another story altogether.
1.Bite down on your gold with moderate pressure.
2.Examine your gold for any markings. In theory, real gold will show indents from your teeth; deeper markings indicate purer gold.
This is actually not a recommended test, as you can damage your teeth. Not to mention that lead is even softer than gold and gold-plated lead will appear to be gold when you bite it.
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Test Gold by Visual Inspection
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- Category: Tungsten Information
- Published on Thursday, 14 November 2013 11:37
The first thing to do to check if you have real gold is to look at it. Look for particular signs that point to real gold.
Inspect the piece for official markings. A stamp will indicate either fineness (1-999 or .1-.999) or karat (10K, 14K, 18K, 22K or 24K). A magnifying glass will make this easier.
An older piece might not have a visible marking due to wear.
Counterfeit pieces can often have a marking that appears authentic; more testing may be needed either way.
2.Look for noticeable discoloration. It is important to check for discoloration in areas that face constant friction (typically around the edges).
If the gold seems to be wearing off and showing a different metal beneath it, you probably have a piece that is only gold plated.
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HTC Shares To Be Raised 5 Billion to invest in molybdenum Deep Processing of Copper
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- Category: Tungsten Information
- Published on Thursday, 14 November 2013 10:30
HTC shares today disclose non-public offering plan to be not less than 11.34 yuan / share to include the controlling shareholder of Sichuan Hongda Industrial, including not more than 10 specific investors, non-public offering of not more than 440 million shares to raise no more than 5 billion Yuan funds for the wholly owned subsidiary of Sichuan Hongda molybdenum copper Co., Ltd. "molybdenum deep processing of copper-polymetallic resource utilization project" Building and complement the company liquidity.
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In The Name of The Illegal Exploitation of Molybdenum Ore Exploration
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- Category: Tungsten Information
- Published on Thursday, 14 November 2013 10:28
Henan Province is located in southwestern mountains chockfull barberry mineral resources in 2006 here was approved as a national geological park, but the reporter found in Xixia County, Zhao Min Mines Ltd. to explore the long-term in the name of national geological park Xixia Funiushan the illegal exploitation of molybdenum on the local ecological environment has caused damage.
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CMOC Listed Half-Rose 211%
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- Category: Tungsten Information
- Published on Thursday, 14 November 2013 10:26
CMOC listed today opened at 8.7 yuan rose 190% upside momentum since then continue to follow the highest increase of 216% at 9.48 yuan, 10:47 turnover reached 80% while the temporary suspension Times 9.33 yuan rose 211%.
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CMOC Listed Next Super Late Hurricane Amplitude Limit
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- Category: Tungsten Information
- Published on Thursday, 14 November 2013 10:24
CMOC participating shares rose on the first day of the first inquiry under the net allocation of individual investors also earn bowl full of pots of surplus, four day book floating profit as high as 200 million.
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