Write down the dimensions (e.g. 0.4 x 0.2 x 0.1 mm)
Check for salt crystals in the well.
The degree of order and the type of crystal can not be determined without the use of X-ray crystallography. Mount the crystal and check diffraction quality.
If the crystals are not suitable for X-ray diffraction analysis, try adding additives or inhibitors. Also go back to the initial screen and check for conditions that may lead to another crystal form.