Lot · Rare Specimens
1.98lbs 2.7x 2.6x 2.6inchs LARGE GABBRO CUBE (HEPTAHEDRON) MADAGASCAR BIG #252
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Sat · Jul 18, 2026
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Condition
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ZIP 492**
dugwoo
2,382 ratings · 100.00% positive
Description
From the sellerGABBRO CUBE WITH ONE CORNER CUT OFF (HEPTAHEDRON). Plagioclase Feldspar : The dominant mineral in gabbro, usually calcium-rich varieties such as labradorite or bytownite. Plagioclase gives gabbro its light-colored grains and contributes to its overall dark green to black appearance when combined with mafic minerals.
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