Contact-metamorphic mineralisation between andesite dikes and limestone of the Onerahi Formation (Lower Tertiary).
The harmotome and analcime described by Black (1969b) are from andesite dikes at Rehia and Maungarahu in the Tokatoka district.
Refs.:
Mason, B. (1957): Larnite, scawtite, and hydrogrossular from Tokatoka, New Zealand. American Mineralogist 42, 379-392.
Black, P. M. (1969a): Rankinite and kilchoanite from Tokatoka, New Zealand. Mineralogical Magazine 37, 517-519.
Black, P. M. (1969b): Harmotome from the Tokatoka district, New Zealand. Mineralogical Magazine 37, 453-458.
Baker, C. K. & Black, P. M. (1980): Assimilation and metamorphism at a basalt-limestone contact, Tokatoka, New Zealand. Mineralogical Magazine 43, 797-807.
Courtney, S. F. & Rodgers, K. A. (1988): Herschelite from Tokatoka, New Zealand. Neues Jahrbuch für Mineralogie, Monatshefte 1988, 433-437.
(in part): Railton, G.L. & Watters, W.A., Minerals of New Zealand, New Zealand Geological Survey Bull. #104 (1990).
Mineral list contains entries from the region specified including sub-localitiesMineral List:48 entries listed. 31 valid minerals.
Localities in this Region:
The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database!
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