$145Median
42Sold (12 mo)
$150Last sale
Updated 5d ago
Spinel
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A large loose non-lustrous opaque black crystal of spinel. Sharply formed and naturally crystallized all around, very minimal micro-damage present. The specimen comes with a previous label from the collection of Ray DeMark.Situated within the high-grade metamorphic terrain of southern Madagascar, the Betroka district in the Anosy region is renowned for its rich gem-bearing alluvial deposits and primary rock occurrences. Geological formations here consist largely of ancient marbles and high-grade metamorphic rocks subjected to intense regional heat and pressure, creating ideal conditions for gemstone crystallization. Artisanal miners have targeted these remote areas for decades, recovering spectacular gem-quality spinel crystals in vibrant shades of pink, red, purple, and blue from weathered matrix and stream gravels. The region remains a celebrated source for mineral collectors and gemologists seeking exceptional natural spinel specimens featuring high clarity and brilliant octahedral forms.
Product details
SpeciesSpinel
SizeMiniature
Dimensions4.0 x 3.5 x 3.0 cm
Listed on10/27/2026
LocalityBetroka, Anosy, Madagascar
SKU2063528
Current owner
WM
Weinrich MineralsFeatured
3,402 for sale·9 sold
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