Teardrop bronzite cabochon, between 30 and 37 mm in length and 4-6 mm dome height. The schiller effect - a moving golden-bronze metallic luster - makes the piece change its appearance with every variation of light, from earthy brown to metallic flash.
Piece details
| Mineral |
Bronzite (ferrous enstatite - (Mg,Fe)SiO? - orthorhombic pyroxene) |
| Dimensions |
30-37 × 18-24 × 4-6 mm (selectable by variant number); tolerance ±0.5 mm |
| Shape and back |
Freeform teardrop, flat back |
| Finish |
Mirror polished |
| Hardness |
5-6 Mohs - we recommend closed bezel setting for rings; suitable for everyday wear pendants |
| Origin |
Material acquired at lapidary wholesale market |
| Treatment |
Untreated |
| Piece type |
Piece selectable by variant number |
This particular piece
The bronzite in this lot features the schiller effect on a greenish-brown background: hematite lamellae (Fe₂O₃) act as oriented mirrors that reflect light in a preferential direction, creating the golden flash. The teardrop shape concentrates the effect at the widest point, where the dome is highest.
The large size (30-37 mm) allows these pieces to be used as a statement pendant or focal point in a cocktail ring. The flat back ensures a stable seat in the setting.
How the bronzite schiller effect is formed
Bronzite is a variety of enstatite (pyroxene) with moderate iron content (Fe₂O₃ between 5% and 13%). The schiller effect is due to lamellar inclusions of hematite or ilmenite oriented parallel to the cleavage planes of the pyroxene. These lamellae act as tiny parallel mirrors: when light strikes at a grazing angle, it is simultaneously reflected in all of them, producing the golden metallic flash. The main lapidary deposits are in India, Austria, and Norway.
For which mounting it works
-
Pendants with silver 925 bezel - oxidized silver accentuates the golden-dark contrast of the stone.
-
Cocktail rings with moderate use - closed bezel; hardness 5-6 Mohs for occasional wear.
-
Wire wrap - the flat back facilitates wrapping; the schiller adds depth to the front.
Bronzite in lapidary tradition
The name was coined in the 19th century by mineralogist Hausmann, in reference to the bronzed flash. Classified as a pyroxene in the same century, it is associated in crystal tradition with protection and grounding. Symbolic properties shared for educational purposes, not as medical advice.
How to recognize genuine bronzite
Authentic bronzite shows the schiller effect only in motion; when static it is opaque and greenish-brown. Tiger's eye has a chatoyant luster but with quartz fibers (7 Mohs, more golden-reddish color). Pyrite has a uniform and constant metallic luster. Hardness 5-6 Mohs, lower than quartz.
Frequently asked questions
Is it natural bronzite?
Yes. The schiller effect comes from native hematite inclusions, untreated. Statement based on lapidary observation; does not include gemological certification.
Is the golden luster always visible?
The schiller effect is activated with direct light at a grazing angle. In diffuse light, the stone shows its basic brown color without flash.
Is it suitable for everyday rings?
With 5-6 Mohs it can be scratched by quartz from household dust. We recommend occasional use with a closed bezel. For daily use, pendants are more suitable.
What makes each piece unique?
Each variant has a specific schiller distribution and its own teardrop shape. The variant number identifies the exact photographed piece.
Are the dimensions exact?
Tolerance ±0.5 mm on any axis due to the freeform polishing process.
How to care for bronzite?
Dry or slightly damp cloth. Avoid acids and abrasives. Store separately from hard minerals. More in our care guide.
See also: all cabochons • handmade pendants.
