Quartz
Sulfur is an element that lacks good cleavage because its atomic structure does not provide planes of weaker bonds along which it can easily split. This makes it difficult for sulfur to form smooth, flat surfaces when broken.
Yes. Quartz can have very well-formed crystals but lacks cleavage.
Nickel does not exhibit cleavage as it is a metal and lacks the crystalline structure necessary for cleavage. Instead, metals like nickel tend to deform plastically under stress rather than breaking along well-defined cleavage planes.
Sulfur does not exhibit cleavage because it lacks a distinct crystal structure. Instead, sulfur has a conchoidal fracture, meaning it breaks along curved, irregular surfaces similar to glass.
the cleavage of gold is hackly. gold has niether fracture or cleaveage
Opal does not have a cleavage or fracture because it lacks a distinct cleavage plane like minerals such as mica or calcite. Instead, opal typically fractures conchoidally, meaning it breaks with smooth, curved surfaces similar to glass.
Beryllium does not exhibit cleavage because it lacks planes of weakness along which it can split cleanly. Instead, beryllium tends to fracture in a conchoidal or irregular pattern when subjected to stress.
Quartz does not have cleavage because it lacks planes of weakness along which it breaks. Instead, quartz exhibits conchoidal fracture, breaking in a way that produces curved, shell-like pieces.
Cleavage in two directions, one good, one distinct.
Obsidian does not have cleavage because of the way it forms. Obsidian is essentially nature's form of glass and so it has no regular or patterned crystal structure. Without that crystal structure, there is no cleavage.
quartz will have conchidal fracture...plagioclase will have 2 sets of cleavage near 90 degrees and some striations quartz will have conchidal fracture...plagioclase will have 2 sets of cleavage near 90 degrees and some striations
A good example of a mineral with basal cleavage are those from the mica group such as muscovite and biotite