Anthracite iron Company and its first furnace at Catasauqua, which went into blast in 1840, along with five other anthracite furnaces. This marked the commercial establishment of anthracite iron production in the United States. The opening of bituminous coal deposits suitable for coking in the western part of the Allegheny Plateau resulted in the gradual displacement of anthracite as a fuel. The production of coke-fired furnaces overtook that of anthracite-fired furnaces in 1875, and the last anthracite furnaces in the US, the former Lock Ridge Iron Company, converted to coke in 1914. Anthracite iron Anthracite iron or Anthracite 'Pig Iron' is the
Anthracite budgerigar mutation the strain and continues to report on its development. Initially found only in Germany, by the end of 2008 descendents of this original mutation had been exported to America, Belgium, Canada, England, Finland, Holland, Italy, Norway, Sweden, Switzerland and Pakistan. The Anthracite mutation has an incompletely dominant relationship with its wild-type allele. That is, it shows a visible effect when present as a single factor (heterozygote or SF) and a different effect when present as a double factor (homozygote or DF). In the green series varieties the SF Anthracite Light Green has one Anthracite allele and one wild-type allele at