“结晶形状”常见的英文表达是 “crystal shape” 或 “crystal morphology”(“morphology” 更侧重于形态学,在专业语境中常用来描述结晶等物体的外形特征)。
例如:
The crystal shape of this mineral is quite unique.(这种矿物的结晶形状很独特。)
We studied the crystal morphology under the microscope.(我们在显微镜下研究了结晶的形态 。)