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Spinel

Unknown Owner
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This specimen hosts an approximately 2-cm cluster of two intergrown crystals, or perhaps one incredibly complicated twinned spinel doublet. From one angle, facing in to the lower-left photo, the crystal looks octohedral. From the side view, it is clearly a fat macle twin. So this is either a macle twin intergrown with an octohedral crystal, or perhaps it is one single large twinned crystal that somehow retained octohedral form on the side facing away from the twin plane. In any case, it certainly has unusual form! The crystal sadly has some very slight wear at its termination, but is still remarkable enough I was happy to get it and offer it (at an appropriately reduced price point, for the damage).

Product details

SpeciesSpinel
SizeSmall Cabinet
Dimensions9.9 x 5.6 x 4.1 cm
Added on10/23/2024

Known provenance

DateCollectorAcquisition price
08/2024Unknown OwnerNot disclosed
The ArkenstoneNot disclosed

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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.
Spinel
Regional guide
Spinel from Luc Yen Mine, Vietnam
Luc Yen spinel, Vietnam — marble-hosted red to cobalt-blue crystals; paragenesis with calcite and clinohumite, making this locality prized by collectors.
    Spinel - Luc Yen Mine, Yên Bái Province, Vietnam