English: Amorphous phosphate crystals are composed of inorganic phosphate salts, primarily calcium phosphate. They do not have a distinct, organized crystal structure, which is why they are called "amorphous."These crystals appear as fine, colorless, or slightly cloudy granules or particles when observed under a microscope. They lack the well-defined geometric shapes seen in other crystalline forms. The formation of amorphous phosphate crystals is influenced by urinary pH. They are more likely to form in alkaline (basic) urine, as the solubility of calcium phosphate salts decreases in a less acidic environment. In acidic urine, the solubility of these salts is higher, and they tend to remain in solution. They are typically considered non-specific findings and are not usually associated with specific medical conditions. They can, however, be seen in cases of alkaline urine due to dietary factors, urinary tract infections (UTIs), or certain metabolic disorders.