The New Zealand Mineral Monetary and Physical Stock Account, 1994-2000, presents the asset value of minerals in New Zealand. It focuses on minerals that are presently economically utilised in New Zealand, including metallic minerals (gold, silver, and ironsand concentrate) and non-metallic minerals (aggregate, clay, limestone, dolomite, and others). Coal and petroleum stocks are excluded from calculations in this report as they are assessed in the Energy Monetary Stock Account.
The report also includes sections on methodology, background to New Zealand minerals, tables and figures for production statistics, physical stock estimates, and asset valuations. Asset valuations are produced using a Net Present Value (NPV) approach, a methodology that is used internationally and is recommended by the System of Environmental and Economic Accounting (SEEA).
Highlights of the report include:
- In 2000, the total asset value of New Zealand’s economically utilised mineral resources (excluding coal and petroleum) was $223 million. Of this, $130 million was non-metallic minerals and $93 million was metallic minerals.
- Aggregate had the highest asset value of all utilised minerals, valued at $105 million, and gold had the second highest asset value, at $77 million.
- By comparison, coal stocks were valued at $398 million, oil stocks at $793 million, gas stocks at $2,770 million, and renewable hydro-electrical energy at $3,670 million.
- Of metallic minerals, only gold, silver, and ironsand concentrate are currently economically utilised at significant rates. However, physical stocks of other metallic minerals exist and have the potential to be economically utilised in the future.