Opal, large, green

Opal, large, green specimen
Category
Mineraloid
Color
Green-Blue
Hardness
5.5 to 6
Luster
Vitreous
Cleavage
N/A
Fracture
Conchoidal
Streak
White
Transparency
Translucent

Location
Vienna
Date
2024-04

Birthday gift from P. and A. purchased in Vienna.