Minerals do have zones of weakness. They are known as cleavage planes. It is the tendency for minerals to break along flat, parallel surfaces. They come in a variety of categories, but it is ultimately where the mineral will break if struck. It cal be basal, prismatic,cubic, rhombohedral, octahedral, or dodecahedral.
abyssal zone
a fault
abyssal
fatigue and weakness, low immunity, brittle bones, bad oral health
Cleavage is the tendency of a mineral to break along smooth planes parallel to zones of weak bonding.
In the root hair zone during absroption of water and minerals
of the Casparian strip, which is a waterproof zone.
Cleavage is a plane of atomic weakness in an inorganic mineral. Since pearls are an organic gem, they cannot have cleavage. The fracture surface of a pearl can be described as conchoidal.
cleavage.
She had a weakness for chocolate.We shall use our enemy's weakness against them.He felt a weakness in the knees.The interviewer asked me what my biggest weakness was.
cleave
Quite often, if you are noticeably weak or tired you should get a blood test and ask if they can check if you are deficient in any vitamins or minerals like vitamin D or iron.