description Hibonite Overview
Hibonite is a rare calcium aluminum oxide mineral belonging to the magnetoplumbite group. It was first described from Madagascar in 1956 and is typically found as brown, reddish-brown, or black crystals. Hibonite is important in mineralogy and planetary science because it occurs in some meteorites and in calcium-aluminum-rich inclusions, among the oldest solid materials formed in the early Solar System.
help Hibonite FAQ
What is hibonite?
Hibonite is a rare calcium aluminum oxide mineral in the magnetoplumbite group. It commonly appears as brown, reddish-brown, or black crystals.
Where was hibonite first described?
Hibonite was first described from Madagascar in 1956. Madagascar remains strongly associated with well-known mineral specimens of this rare species.
Why is hibonite important in planetary science?
Hibonite can occur in calcium-aluminum-rich inclusions, some of the oldest solid material found in meteorites. Scientists study these inclusions to learn about the early Solar System.
What does hibonite look like?
Typical hibonite crystals are dark brown, reddish-brown, or black and may have a glassy to submetallic appearance. Its color and rarity help distinguish it from more common aluminum-rich minerals.
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