After after the pearlite is the volcanic eruption acidic lava meets the lake, the sea and so on one kind of glass archery target volcanic rock which suddenly cools forms, it forms to the Jurassic Period to the cretaceous period last stage, is apart from now to have 135 million years. According to the internal crystal water content difference, differentiates for the black sunlight crag, the pearlite.
  The pearlite is the smashing magmatic rock heats up to 1000 ℃ above inflates forms, has the seal the porous structure, the pellet diameter generally between 0.5 ~ 2.5mm. The nature light, ventilates the nature well, the non- nutrition ingredient, is easy in the use to float in the mix raise earth surface.
  The inflated pearlite mainly has following several aspects the use:
  1. constructions domains: Heat preservation heat insulation, fire protection coating, sound absorption board and so on
  2. industries domains: The pipeline heat preservation, guarantees the cold heat insulation, the filter material, the steel-making process collection dregs material, the pliolite packing material and so on
  3. agricultural gardening domain: The non- earth cultivation, the soil amelioration, the agricultural chemicals slow pass the medicinal preparation and so on