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1
Actinolites are found in some highly metamorphic gneisses, brought by landslips from the neighbouring heights.
Himalayan Journals — Volume 2 / Or, Notes of a Naturalist in Ben...
2
The formation is upper Silurian or lower Devonian, a transition to gneiss, but not highly metamorphic.
To The Gold Coast for Gold: A Personal Narrative. Vol. II