Rough specimen, Oregon common opal; brown, red, white and translucent. Conchoidal fractures. Weight 36.8 grams. Black background.
Palabras clave
oregon,
opal,
jewell,
luxury,
beauty,
beautiful,
mineralogy,
specimen,
orange,
brown,
clear,
transparent,
coloured,
opaque,
sample,
ore,
mine,
background,
geologic,
hydrothermal,
silicon,
amber,
glasses,
glassy,
red,
crystalline,
science,
rough,
semitransparent