#MX2 Malachite and Azurite and Gem Silica on Massive Quartz on Matrix

This is a cool specimen of malachite and azurite and some gem silica on massive quartz which is attached to a piece of matrix rock. The massive quartz could be a type of Aventurine. What appears to be gem silica appears on the thiner edge in several spots.

Approximate weight: 16.5 oz or 474g

Approximate size: 4.25 x 3.5 x 1.75 inches