:gem:Ethiopian opal is a hydrophane material, absorbing water and changing in transparency.
:sparkles:Ethiopian opal does not craze like other opals, making it more stable for cutting and shaping.
:droplet:Take care to avoid oils and substances that can be absorbed by the opal, potentially causing damage.
:art:Maintain symmetry and a flat back during shaping to ensure easy setting of the cabochon.
:pick:Remove any imperfections and work towards a polished finish for a high-quality cabochon opal.