It might include crystals, but these will likely be embedded during the amorphous matrix with the pumice — its exact make-up relies on the nature of its source magma. Alternatively, pumice is considered to be a mineraloid or possibly a sort of volcanic glass. Stir in some minty, chamomile, or https://onlybookmarkings.com/story18558735/the-best-side-of-reptile-substrate