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Minerals of New Zealand

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Siderite, Maunganui Bluff, New Zealand
Apr22April 22, 2026Maunganui Bluff, Mineral Details, Northland

Siderite, Maunganui Bluff, New Zealand

This specimen previously belonged to the late Judy Rowe who collected often in New Zealand.

Siderite, Chabazite-Na, Apatite, Chlorite, Bickers Quarry, New Zealand
Aug15Bickers Quarry, Mineral Details, Northland

Siderite, Chabazite-Na, Apatite, Chlorite, Bickers Quarry, New Zealand

Siderite is a very common mineral, in lustrous or iridescent deep brown forms, rarely in paler brown translucent balls. Generally it is in sheaf-like bundles, occasionally in ‘bow-ties’. It does…

Siderite, Orthoclase, Bickers Quarry, New Zealand
Aug15Bickers Quarry, Mineral Details, Northland

Siderite, Orthoclase, Bickers Quarry, New Zealand

Siderite is a very common mineral, in lustrous or iridescent deep brown forms, rarely in paler brown translucent balls. Generally it is in sheaf-like bundles, occasionally in ‘bow-ties’. It does…

Magnetite, Siderite, Apatite, Chlorite, Chabazite-Na, Orthoclase, Bickers Quarry, New Zealand
Aug15Bickers Quarry, Mineral Details, Northland

Magnetite, Siderite, Apatite, Chlorite, Chabazite-Na, Orthoclase, Bickers Quarry, New Zealand

Black magnetite octahedra, some with traces of chlorite on their faces, some of which are stepped. Some magnetite crystals are completely encased in chlorite. Blocky orthoclase crystals form part of…

Gypsum, Siderite, Chlorite, Bickers Quarry, New Zealand
Aug15Bickers Quarry, Mineral Details, Northland

Gypsum, Siderite, Chlorite, Bickers Quarry, New Zealand

Gypsum tends to usually occur alone or with barite, chabazite-Na and analcime in the more weathered rock. It forms sprays of clear needles, or larger flat crystals. Below: Gypsum, siderite…

Analcime, Bickers Quarry, New Zealand
Aug15Bickers Quarry, Mineral Details, Northland

Analcime, Bickers Quarry, New Zealand

Analcime is found as small water-clear trapezohedra, occasionally with white cores, and often with square c-faces. Larger crystals are usually crackled and clouded. It is associated with most other minerals,…

Bickers Quarry, Northland, New Zealand
Aug15August 15, 2025Bickers Quarry, Northland

Bickers Quarry, Northland, New Zealand

Bickers Quarry (originally described as Simpkins Quarry) has been owned by Mr. S. Bicker. It is on the north side of Tokatoka Road, a short way east of the junction…

Chabazite-Na, Siderite, Magnetite, Bickers Quarry, New Zealand
Aug15August 15, 2025Bickers Quarry, Mineral Details, Northland

Chabazite-Na, Siderite, Magnetite, Bickers Quarry, New Zealand

Octahedral magnetite crystals with yellowish chabazite and dark brown siderite. Chabazite-Na (“herschelite“) crystals are found in many vugs, as single yellowish, cream, white or colourless hexagonal plates, with striated prism…

Moeraki Point, Otago, New Zealand
Aug14August 15, 2025Moeraki Point, Otago

Moeraki Point, Otago, New Zealand

Moeraki Point (also known as the Moeraki Headland) is the rocky promontory that forms the southern arm of the bay where the Moeraki Boulders are found, in the Otago region…

© 2026 Steve Sorrell, Mineral Matters

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