Where is Bronzite found?
Enstatite variety
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Open the appBronzite occurs in specific geological environments. Knowing where to look, and in what kind of rock, is the difference between going home empty-handed and finding a great specimen.
Where to find Bronzite
Norway
Significant occurrences in various mafic and ultramafic intrusions.
South Africa
Found in the Bushveld Igneous Complex, a major source of various pyroxenes.
United States
Occurrences in Maryland, North Carolina, and other states with mafic/ultramafic intrusions.
Austria
Known localities for well-formed crystals.
India
Reported in certain geological formations.
Collecting tips
- Geological Context. Search in areas known for mafic and ultramafic igneous rocks (gabbros, norites, peridotites, pyroxenites) or high-grade metamorphic terrains. Bronzite is a common constituent of these rock types.
- Luster and Color. Look for minerals with a distinctive bronzy, submetallic luster and a brownish-green to dark brown color. The schiller effect is often visible when rotating the sample in light.
- Crystal Habit. Identify prismatic crystals with characteristic pyroxene cleavage (two cleavages at nearly 90 degrees). Bronzite often forms granular aggregates or lamellar masses.
- Associated Minerals. Bronzite is commonly found with other mafic minerals such as olivine, plagioclase feldspar, chromite, and magnetite.
Quick Check
- Color:
- Brownish-green to dark brown with bronzy reflections.
- Luster:
- Submetallic to bronzy (schiller), vitreous on fresh surfaces.
- Streak:
- White to grayish-white.
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