Anthracite
Coal has a smooth, hard texture with a shiny appearance. It is typically brittle and crumbly, though sometimes it can exhibit more compact, solid forms depending on its grade and level of compression.
The texture of coal is a 'hard, shiny, black rock. However, the 'hardness' and the 'shininess' can vary depending on the impurities present. However, it is always black. The texture of coal can vary from Peat, )A black wet earth) coal in its early stages of formation. (Burns/combusts with a lot of smoke) Then Lignite ; a soft black rock, with no wetness. ( burns/combusts with less smoke). Then coal as described above ( burns/combusts with a hot bright flame, dependent on the amount of oxygen draught present). Finally Anthracite ; hard and shiny ( Sometimes known as 'Black Diamond'( burns/combusts with a hot bright bluish flame, dependent on the amount of oxygen draught present).,
Germanium is a metal with many rough edges and smooth bumpy flat areas
Coal is a hard rock that can break into smaller pieces when subjected to force, like crushing or impact. However, it is generally more brittle than hard rocks like granite or quartz. The ease with which coal breaks can vary depending on its moisture content and impurities.
Coal is not malleable in the traditional sense, as it is a brittle and hard material. Malleability refers to the ability of a material to be deformed under compressive stress, which coal does not exhibit. Coal is primarily composed of carbon and other elements, and its structure is not conducive to being shaped or molded like malleable materials such as metals.
Coal has a smooth, hard texture with a shiny appearance. It is typically brittle and crumbly, though sometimes it can exhibit more compact, solid forms depending on its grade and level of compression.
Neither, it is brittle.
hard and rough
The texture of coal is a 'hard, shiny, black rock. However, the 'hardness' and the 'shininess' can vary depending on the impurities present. However, it is always black. The texture of coal can vary from Peat, )A black wet earth) coal in its early stages of formation. (Burns/combusts with a lot of smoke) Then Lignite ; a soft black rock, with no wetness. ( burns/combusts with less smoke). Then coal as described above ( burns/combusts with a hot bright flame, dependent on the amount of oxygen draught present). Finally Anthracite ; hard and shiny ( Sometimes known as 'Black Diamond'( burns/combusts with a hot bright bluish flame, dependent on the amount of oxygen draught present).,
Anthracite is a form of coal. It is hard black and shiny.
Anthracite is a form of coal. It is hard black and shiny.
Germanium is a metal with many rough edges and smooth bumpy flat areas
Well it depends on when you mean....Bituminous coal that's mined can be fired in bee oven to produce "Coke", a fuel.Burned Bituminous Coal in a furnace produces clunkers--hard, brittle chunks with coal burned out.When a waste heap of coal catches fire, it produces Reg Dog, a hard, partly brittle rock used as road cover.In the ground, unmined and under pressure and heat, Bituminous coal changes to Anthracite coal.
Sulfur typically appears in its natural form as bright yellow crystals or as a yellow powder. It has a distinctive smell resembling rotten eggs, and it is brittle in texture.
The texture, Is like glass. Because; The pigments and color are like the blue and green cobalt plates they make.
Coal is a hard rock that can break into smaller pieces when subjected to force, like crushing or impact. However, it is generally more brittle than hard rocks like granite or quartz. The ease with which coal breaks can vary depending on its moisture content and impurities.
Coal is not malleable in the traditional sense, as it is a brittle and hard material. Malleability refers to the ability of a material to be deformed under compressive stress, which coal does not exhibit. Coal is primarily composed of carbon and other elements, and its structure is not conducive to being shaped or molded like malleable materials such as metals.