Integrative Levels Classification project ILC2 schedules developing schedules how it works meetings people references
ILC class iiv

ILC developing version
Expanded class iiv

   ▲  broader class

▽ ⌕         iiv            coal
▽ ⌕         iive                 peat
▽ ⌕         iivg                 lignite
▽ ⌕         iivk                 sub-bituminous coal
▽ ⌕         iivm                 bituminous coal
▽ ⌕         iivs                 steam coal
▽ ⌕         iivt                 anthracite
 
Connected classes:
 

specificity 
current: 99 

   
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ILC developing version — ISKO Italia <https://www.iskoi.org/ilc/> : 2006.03.06 - 2026.05.14 -