#Anthracite #coal is the hardest kind of coal, and burns very cleanly compared to other forms of coal. This made it attractive for home stoves, and its expense made it impractical for power plants.
The #macro #perspective of an anthracite #specimen shows #yellow, #sulfurous #inclusions on the black and gray surface.
#MacroPhotography, #Photography, #Photograph, #GeologyPhotography
https://heronfox.pixels.com/featured/nick-in-an-anthracite-specimen-heron-and-fox.html

#Anthracite is the hardest and cleanest-burning type of #coal. It’s also the most expensive, meaning it was usually reserved for home #stoves and #heating; not power generation. Because of its high heat content, it was formerly used in blast furnaces, but has been replaced by metallurgical coke which has greater room for oxygen penetration, which anthracite is too dense for. It is also hard to ignite.
This #mace #photograph of the surface of the #mineral show it begins to cleave along flat plains, making it clear that anthracite is an intermediate stage between bituminous coal and graphite.
There are also yellow, #sulfurous inclusions on the surface.
#MacroPhotography, #AnthraciteCoal, #Rock, #Minerology, #MinerologicPhotography, #Photography, #Photograph, #Photo
https://heronfox.pixels.com/featured/anthracite-specimen-1-heron-and-fox.html

On the 26th of #July 1943, #photochemical #smog was first observed in #losangeles.
On the 5th of #December 1952, #sulfurous #smog was #first observed in #London. It developed, due to the high #concentration of #sulfur in the air.
https://www.myshalz.com/2022/12/smog-is-result-of-excessive-air.html