The phrase "precious addition" is correct and usable in written English.
You can use it to refer to something valuable that has been added or acquired. For example, "The prize-winning painting was a precious addition to the museum's collection."
In a nutshell, hair extensions are precious additions to your hair.
Although clearly Westerners have helped save the mountain gorillas, it is Africans who bear the actual costs of conserving the apes, which raid farms and monopolize precious forests in addition to generating revenues from tourism.
The mushroom juices with their syrah enrichment, which accumulate in the foil package as the grilled caps bide their time, become a precious last-minute addition to the risotto, boosting the flavors all around.
Planetary Resources is still focused on harvesting precious metals in addition to water, and this is a win for those of us that won't be headed to Mars.
His album title alone, "Die Lit," frames life as a precious countdown — and in addition to confirming that it's better to burn out than fade away, he reminds us of music's divine power to make time go slack.
What began as simply the 40- to 50-horsepower model was turned – because of a coat of aluminum paint, the addition of precious metal fixtures and a flashy name – into a legend: the Silver Ghost.
TPR results have evidenced the enhancement of reduction of ceria in the supports by addition of precious metal although reduction of catalytic samples requires higher temperature as the amount of ceria in the support is higher.
The thermal conductivity of copper and aluminum heat exchangers are quite high, and the addition of precious metal to improve thermal conductivity further would incur a tremendous increase in the heat exchanger cost.
Other goods included copper from Cyprus, silver from Anatolia, woods from Lebanon, gold from Egypt, olive oil, wine, and textiles in addition to precious stones from modern Afghanistan.
