ncat JR2 G0W-NPG Magnetite, Chlorite, Siderite, Chabazite-Na, Orthoclase, Apatite, Bickers Quarry (Simpkins Quarry), Tokatoka, Kaipara District, Northland Region, North Island, New Zealand
Black magnetite octahedra, some with traces of chlorite on their faces. Some magnetite crystals are completely encased in chlorite. Blocky orthoclase crystals form part of the cavity lining. Brown sheaf or club-shaped siderite, yellow hexagonal...