Black Coal – Lignite

There are 6 free stock images in this gallery to download and use for anything, even for comercial intention!

Coal Lignite (brown coal) is the lowest rank of coal and used almost exclusively as fuel for electric power generation.

Lignite is a dark brown to black combustible mineral formed over millions of years by the partial decomposition of plant material subject to increased pressure & temperature in an airless atmosphere.  The heating content of lignite is ~ 7,000 BTU per pound (0.45Kg) & its H2O content is about 35 percent.

Lignite content:

  • Volatiles 45-65 %
  • C Carbon 60-75%
  • H Hydrogen 6.0-5.8%
  • O Oxygen 3.4-17 %
  • S Sulfur % 0.5-3
  • Heat content kJ/kg  <28470

The main picture was taken with a Fujifilm brand camera, model FinePix S5700 S700 on Sunday 14th October 2007 by the Robert & Mihaela Vicol photographers.

As basic settings, an exposure time of 10/1600 (6.25ms ) was used with aperture f/3.5 and the ISO Speed of the camera was 100. Actual focal length of the lens was 630/100 (6.3mm) with unknown lens model (range).

The actual file size is 1.65 MBytes, resolution is 3072px on the horizontal and 2304px on the vertically and the original (or modified) file name is Black-Coal-Lignite_16856.jpg (media type is image/jpeg).

The photo original orientation was portret with an X Resolution DPI equal to 72/1 and Y-Resolution DPI equal to 72/1.
Other camera settings (and APEX value) were the lens aperture 360/100, status of flash equal with 24, shutter speed 730/100 and brightness value 600/100 (6.3).

Note: there is no additional information about this picture!

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  1. Pingback: My Gallery » Coal, Lignite

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