Beach Sand, Kovalam Beach, Kerala, India
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Kovalam Beach |
The sand has been collected above the waterline
Location:
Kovalam Beach, Kerala, south-west tip of India
Provenance:
High-grade metamorphic and mafic to intermediary plutonic proterozoic rocks of the indian craton
Composition:
Black, metallic resplendend ilmenite (ca. 70%), partly euhedral; translucent, bright green titanite (?, ca. 10%), black red to pink translucent garnet (ca. 10%), commonly zircon (colourless, long-prismatic) and quartz (colourless)
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Ilmenite, some garnet |
Petrographic thin section:
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Bright field |
Dark field |
Opaque ilmenite dominates the image. This impression is reinforced in the dark field by garnets; merely some clinopyroxenes stand out with their coloures
Texture:
Fine sand (ca. 170 µ), very well sorted, well to very well rounded
Sample Number:
heubeck0075
Collector:
A. Deeken
Date:
2004
Comments:
The existence of thorazite at Kovalam Beach is mentioned in Wikipedia, but is not certified. Famous locality for sand collectors
