Extrusive igneous rock; black, volcanic and glassy
The first hint to crack the puzzle «Extrusive igneous rock; black, volcanic and glassy» is:
It is a word which contains 8 letters
The second hint to crack the puzzle «Extrusive igneous rock; black, volcanic and glassy» is:
It starts with letter O
O
The third hint to crack the puzzle «Extrusive igneous rock; black, volcanic and glassy» is:
It ends with letter N
O
n
Looking for extra hints for the puzzle «Extrusive igneous rock; black, volcanic and glassy»:
Click on any empty tile to reveal a letter
O
n
The answer for the puzzle «Extrusive igneous rock; black, volcanic and glassy» is:
O
b
s
i
d
i
a
n