XRD stands for X-Ray Diffraction, which is a relatively modern, high tech method of testing metals, including precious metals.
Originally, X-Ray equipment was expensive to buy and maintain. In recent years, small, hand-held or portable X-Ray ray devices have become available at more reasonable prices. They are unlikely to become consumer purchase items, as they still cost typically over £10,000 each, but at this pricing level, they are affordable for local coin dealers, and other buyers of gold and precious metals.
We recently invested in a Niton desktop tester; one of the best things about it is the ability to detect, analyse, and quantify other elements in gold and other alloys.
US Dollar Exchange Rates in GBP £ Pounds Sterling
Gold Investment Advice
There are a number of pages on our site giving advice about various aspects of investing in gold.
Other Gold Prices
You may prefer to use some of the other gold price pages on our site. These have a limited selection of prices, but using a larger display which makes them easier to read.
All Gold Prices
Gold prices in 11 major currencies, but harder to read because of smaller font.