10hljdis ((FLUORAPATITE on ACTINOLITE)), $15 MINIMUM BID, Silver Hill Quarry, Lancaster County, Pennsylvania, 11 x 10 x 3 cm, Cabinet, | |
Fluorapatite is rare in Pennsylvania. A few years ago a limited fine at the Silver Hill Quarry produced the largest crystals yet found in Pennsylvania. These are in association with Actinolite. Here is a plate with large Actinolite crystals and covered with Fluorapatite crystals from 1 to 1.5 cm. |