| AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Pennsylvania > Microcline (Baveno-law twinned) |
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| DESCRIPTION: | No. 59758 |
| Mineral: | Microcline (Baveno-law twinned) |
| Locality: | Irving's Quarry, near 25th Street, Chester Township, Delaware County, Pennsylvania |
| Description: | Elongated tan-white microcline crystal twinned diagonally through the centers following the Baveno Law of feldspar twinning with brown limonite stains throughout. The microcline crystal was repaired where it was extracted in two parts. Ex Jeff Weissman collection #1879; ex. Ronald Sloto (author of The Mines and Minerals of Chester County, Pennsylvania) |
| Overall Size: | 14x5.5x5 cm |
| Crystals: | 120 mm |
| Archived: | For reference only |
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