Bronzite oval cabochon in four individual formats (31-36 mm). Each piece displays the characteristic bronzite schiller: a golden-coppery metallic flash that emerges with glancing light, produced by ilmenite lamellae within the pyroxene. Dark green-brown base color with vitreous luster.
Piece Details
| Mineral |
Bronzite (enstatite with iron, pyroxene group, (Mg,Fe)SiO₃) |
| Dimensions |
31-36 mm long × 16-24 mm wide × 5-6 mm thick depending on format |
| Shape and back |
Freeform oval, flat back |
| Finish |
Mirror polished |
| Hardness |
5-6 Mohs — we recommend a closed bezel setting for ring use |
| Origin |
Material acquired from wholesale lapidary market |
| Treatment |
Untreated |
| Piece type |
Available in 4 formats (pieces 8, 11, 12, 14) — each one is individual |
This specific piece
The bronzite schiller has a more golden-bronze tone than hypersthene, consistent with its lower iron proportion (Fe/(Fe+Mg) < 0.3). Under pinpoint light, all four pieces show the effect to varying extents: some with the glow concentrated in the central area, others with reflections covering the entire face of the cabochon. The 5-6 mm thickness allows for standard medium-depth bezels.
The bronzite schiller effect
Schiller is an aventurescence that occurs when ilmenite inclusions (FeTiO₃), exsolved into lamellae parallel to the {100} crystal plane during the slow cooling of magma, selectively reflect yellow-red wavelengths of the visible spectrum. Bronzite differs from hypersthene in its lower iron content, which gives it a more golden schiller and a warmer base color.
What mounting it works for
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Statement ring in 925 silver — the bronzite schiller contrasts with silver in such a way that the stone seems to change metal depending on the angle.
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Pendant in silver or copper — copper directly complements the bronze tone; silver offers maximum contrast with the mineral's brown-green.
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Wire wrap with copper or brass — the metallic tone of the wire is consistent with the schiller, producing a chromatically very unified piece.
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Macrame — in the largest format (36×24 mm) the size and weight are suitable for a central cabochon in a macrame necklace.
Bronzite in tradition
The name derives from the Latin "bronze" due to its characteristic luster. It is a common component of chondrites (stony meteorites), which has fueled its cultural association with the cosmic and the ancient. In crystal tradition, it is associated with equanimity and steadfastness of purpose.
The symbolic properties attributed to minerals belong to cultural and historical traditions. They are shared for educational purposes, not as medical advice or a substitute for professional care.
Frequently Asked Questions
Does the schiller disappear over time?
No. It comes from ilmenite inclusions within the mineral, not a surface coating. It cannot be erased with normal use or cleaning.
What is the difference between the 4 formats?
Each piece (8, 11, 12, 14) has different dimensions (31-36 mm × 16-24 mm) and an individual schiller distribution and intensity.
Can it be used in an everyday ring?
At 5-6 Mohs, it is viable in a ring with a medium-high walled closed bezel. Avoid harsh direct impacts on the cabochon face.
How is it cared for?
Clean with a dry or slightly damp cloth without abrasives. More at jewelry care.
See also: complete cabochon collection · handmade rings.
