- Amorphous urates are normal in urine.
- Appearance: often appear in noncrystalline amorphous form. Have yellowish-brown (pinkish) granular appearance.
- In urine with uric acid in it, amorphous urates will precipitate out of solution upon refrigeration. They appear as a heavy pink sediment and impart a cloudy to turbid appearance of the mixed urine. Amorphous urates will re-solubilize when heated at 60C