Index No: MRTN103750; Collected By: Thomas B. Nolan; Sample Type: hand sample; thin section; Notes: Location taken from Belmont Mine shaft; Dense, mostly dark, fine-grained quartz of variable appearance and poorly defined boundaries between different types. The quartz is dense, barren and usually thoroughly shattered. An older coarsely crystalline quartz is veined and embayed by very fine-grain quartz which locally has considerable sericite.