For sale is a specimen of epimorphed black/brown velvet siderite, from the now long closed Blackhead Quarry, to Ballina, NSW. The stunning sidertite, with its sparkling sheen, has epimorphed over ferric-calcite, which to some extent has been leached away , leaving just the easily seen cavity below the siderite. Collected by and from the collection of Norman and Jocine Robinson.
BLACKHEAD QUARRY, EAST BALLINA, NSW.
56 x 45 x 20mm.