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Glaucophane (Under Plane Polars)
Slide: BH250-23 
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Glaucophane (Under Cross Polars)
Slide: BH250-23 
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More Glaucophane (Under Plane Polars)
Slide: BH250-23 
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More Glaucophane (Under Cross Polars)
Slide: BH250-23 
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More Glaucophane (Under Plane Polars)
Slide: BH250-7 
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More Glaucophane (Under Cross Polars)
Slide: BH250-7 
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Glaucophane Cleavage (Under Plane Polars)
Slide: BH250-23 
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Glaucophane Cleavage (Under Cross Polars)
Slide: BH250-23 
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Glaucophane (Under Plane Polars)
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Zoned Glaucophane (Under Plane Polars)
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