Tremolite

Here's a cluster of consisting of many 4-5mm crystals all adhered via a talc coating. Much of this talc was taken off with a sand blaster, using baking soda, which caused a chemical reaction turning the talc a sort of purple colour. The crystals in this specimen are all very gemmy and lustrous.

Tremolite from the area is often dubbed "actinolite". Tremolite and actinolite are two very similar minerals that form a series with each other and essentially share the same chemical formula. Tremolite has a greater presence of magnesium over iron, whereas actinolite has a greater presence of iron over magnesium. Analyses have shown that actinolite is very rare and most specimens like this are tremolite.