that are found in the aquarium trade don't make high demands when it comes to water quality: they can live very well in clear, streaming, oxygen-rich water as well in still water, with rotting organic waste, containing almost no oxygen. in general one should apply the same rules for water quality as...
of emerging wall systems that provide durable, cost effective and thermally efficient performance. signup ceu credit course understanding stone wool insulation in exterior wall and rainscreen applications the course identifies what stone wool insulation is and how it is produced. it also discusses mineral...
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on powder diffraction, international union of crystallography newsletter , - . ( pdf ) downs, r.t. and hall-wallace, m. ( ) the american mineralogist crystal structure database. american mineralogist , - . ( pdf ) estrada c f ( ) changing the science of mineralogy: the use of raman spectroscopy in mineral...