fracture
Young mountains are jagged because they have experienced recent tectonic activity that causes the Earth's crust to rapidly rise and fold. This process, known as orogeny, results in steep, rugged peaks and ridges. Over time, weathering and erosion will gradually wear down these jagged features, resulting in smoother, rounder mountains.
Yes, beryl does have cleavage. This is because beryl belongs to a mineral group known as silicates, which typically exhibit cleavage due to their crystal structure. Cleavage is the tendency of a mineral to break along specific planes of weakness.
The hardest mineral is diamond, and the softest mineral is talc.
Diamond is the hardest mineral known.
Each known mineral has a specific chemical composition.
Oil is the most-known mineral fuel.
Diamond is the hardest mineral currently known and is an allotrope of carbon.
I believe you are talking about parapets, the stones with space left between them to allow archers to fire without exposing themselves No, the parapet is what you are standing on. Battlements are the 'jagged things', otherwise known as crenellations.
Cleavage is the tendency of a minerals to break along flat surfaces. It means that the make up of the mineral is uneven, dense on one side and not dense in the other, causing the mineral to break along flat surfaces. The tendency of a mineral to break irregurlary is fracture.
The softest known mineral is 'TALC'. The hardest known mineral is 'DIAMOND' (according to Friedrich Mohs scale)
yes
Emerald is a mineral. Specifically, it is a variant of the mineral known as beryl.