Spinel - image 1

Spinel

$1,500.00

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Franklin mine in New Jersey needs no introduction and this fabulous Spinel crystal will make a great addition to any collection centred on this most famous locality. The Spinel forms a perfect octahedral crystal, its lower four faces remaining embedded in the white Calcite matrix. Its upper pyramidal edges measure 1.8 cm and are all razor-sharp. Two faces are mirror-smooth while two display a rougher texture, mainly due to interruptions produced by growth patterns. The crystal appears jet-black and at first could be mistaken for Franklinite, but close inspection reveals it to be intensely dark inky blue. A fine and quite rare example of well crystallized Spinel from the Franklin mining district in Sussex County, New Jersey, USA.

Product details

Listed on10/15/2026
SKUCC21842

Current owner

Crystal Classics
Tucson, Arizona, USA
7,590 for sale·5 sold

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Spinel
Mineral guide
Learn about Spinel
, color range from ruby red to cobalt blue, sharp octahedral form, hardness 8, rare gemmy crystals on marble, prized by collectors for rarity and luster.