11. Tansy is a flowering herbaceous plant with finely divided compound leaves and yellow, button-like flowers. 12. Macroscopically, Raney nickel is a finely divided gray powder. 13. As a finely divided powder, it was also sprinkled on dielectric surfaces to study Lichtenberg figures. 14. "Nigella sativa " grows to tall, with finely divided , linear ( but not thread-like ) leaves. 15. :I have seen such orange waters in coal mining country, where black can be finely divided coal. 16. Because rubber does not dissolve easily, the material is finely divided by shredding prior to its immersion. 17. Two amorphous forms, one a finely divided powder and the other a glassy solid, are also known. 18. Constructed of courses of blocks of a conglomerate rock, set in a finely divided sand and lime mortar. 19. Tougher substances, such as concrete, may also be mechanically ground down and reduced to finely divided mineral dust. 20. Finely divided thorium metal presents a fire hazard due to its pyrophoricity and must therefore be handled carefully.
