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 chabazite-Na, and needles of apatite coated with chlorite. Width of view 6mm. Stack of 70 images.

Click on the image below for a higher resolution version.