Coal does not have much cleavage, at least most sides. Since most coal basially has the same atomic structure (of it even is the same type of coal), I'd say coal has poor cleavage, but my answer is not guaranteed.
-Lazia Marcuss
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Bituminous coal typically exhibits poor to absent cleavage, as it tends to break irregularly with a conchoidal fracture. This means that it fractures along curved surfaces rather than having well-defined cleavage planes.
Bituminous coal is described as:Diaphaneity (Transparency): OpaqueColour: BlackStreak: BlackCleavage: None ObservedSee PicturesBituminous Coal exists in the geological area known as The Pittsburgh Coal Seam-- an area extending from Western Pennsylvania, Western West Virginia, Ohio, Kentucky, and Indiana. Though mined since the days of Native American Indians, and heavily mined since 1800, it is estimated there is still enough coal in this large seam to last millions of years.
Cobalt has a cleavage in three directions, forming a cube.
No, not all minerals have cleavage. Cleavage is a property in which a mineral breaks along planes of weakness to form smooth surfaces. Some minerals exhibit cleavage, while others may fracture irregularly or have no cleavage at all.
Zinc exhibits a metallic cleavage, which means that it does not have a distinct cleavage plane like minerals. Instead, when subjected to stress, zinc will bend rather than break along a cleavage plane.
Coal does not exhibit cleavage because it is a sedimentary rock composed mainly of carbon and does not have a crystalline structure like minerals with cleavage. Instead, coal fractures irregularly along its layers or bedding planes.
Bituminous coal typically exhibits poor to absent cleavage, as it tends to break irregularly with a conchoidal fracture. This means that it fractures along curved surfaces rather than having well-defined cleavage planes.
Bituminous coal is described as:Diaphaneity (Transparency): OpaqueColour: BlackStreak: BlackCleavage: None ObservedSee PicturesBituminous Coal exists in the geological area known as The Pittsburgh Coal Seam-- an area extending from Western Pennsylvania, Western West Virginia, Ohio, Kentucky, and Indiana. Though mined since the days of Native American Indians, and heavily mined since 1800, it is estimated there is still enough coal in this large seam to last millions of years.
Sulfur's cleavage is imperfect.
cleavage....
it has no cleavage
imperfect cleavage
it has no cleavage
What cleavage does pyrite have
cleavage
No it has cleavage and it's cleavage is "absent".
It has both cleavage and fracture.