Apart from its regular circulating coinage, Fiji has authorised a number of private mints to issue collector coins in precious metals, which are legal tender in the country but are not intended for general circulation. Many of them are in sizes based on the troy ounce, but some are "metric" - like ten grams (10 g) of silver.
The coins are "Non-Circulating Legal Tender" (NCLT) and not bullion because they are issued at prices much higher than their bullion value and are targeted at collectors who appreciate them for their artistic or sentimental value, and not at bullion investors. | 
