Salt and pepper granitic: formally a biotite hornblende quartz granodiorite.
Salt and pepper granitic: formally a biotite hornblende quartz monzonite.
Finely bedded sediment. Outside of the hornfels influence.
Dark patches of the rock are relicts of biotite hornfels, (high temperature) being altered\replaced by a hard, white bleached rock that represents the movement through the rock of hydrothermal fluid that is sufficient to destroy the original hornfels and then be cut by veinlets. This is a rock that if found should be given serious consideration as to what else may be in the area.
inner hornfels, the brown purplish colour is suggestive of biotite hornfels, high temperature, nearness to intrusive. Sample is hard, brittle with good conchoidal fracture, typical of well developed hornfels.
Thin bedded fine sandstone and silty argillite. Sheen and brownish colour indicate biotite
Strong hornfels, massive, conchoidal fractured, no bedding. Fine fractures of ‘bleached’ veinlets and silica suggest presence hydrothermal fluids
The Kitsault Moly mine was discovered by a prospector who recognized hornfels and knew of its possible importance for where mineralization might be.
Check out: https://theprospectornews.com/avanti-mining-commences-construction-at-the-kitsault-project/