| | Description | |
| Quality of samples: | Rock forming mineral/non-crystalline/little interest for collectors.(##) | | Rarity at site: | Extremely common | | Confirmation | |
| Validity: | Confirmed | | Confirmation Methods: | Polarised-light microscopy SEM-EDS
| | References | |
| References: | http://geocities.com/franz_bernhard/polishedslabs.html |
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