Notes on the vegetation types of Little Barrier Popular Article
- Mason, G.W.; Preest, D.S.
- Beach and dune deposits on the south coast of Southland were sampled and the minerals of specific gravity greater than 2.9 were extracted, magnetically separated and counted for radioactivity; the percentages of heavy minerals are estimated and the predominant minerals noted. Total quantities of beach sands west of Orepuki are estimated. The predominant heavy mineral throughout is a green amphibole. No commercially attractive quantities of ore minerals are indicated.