Hemimorphite 3.51 ct
12.10 x 7.80 x 3.40 mm
y609

Hemimorphite
Is a Hydrated Zinc Silicate Hydroxide with formula: Zn4 Si2 O7 (OH)2 -H2O The hardness is 4.5-5.Well known among mineral collectors for the nice color and botryoidal shapes.
The most popular material comes from China