O3. Magnetite Gabbro
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Fact sheet
Description: 

Exhibits pigeonite inverted to orthopyroxene with two generations of exsolved augite lamellae. Also augite with very fine lamellae of exsolved orthopyroxene. Preferred orientation of pyroxenes and plagioclase is parallel to larger scale layering. Stage rotations useful for plagioclase composition determination using extinction angles

In Place
In Time
Location description: 
Bushveld, South Africa
Accuracy:
Location precision: 
Poor
Timescale:
Not known
Ma = Millions of years ago
In Focus
Type:
Type: 
igneous
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