Hemimorphite 3.55 ct
10.40 x 10.30 x 3.70 mm
y610

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