Lacy cloth a background
Copper sulfate
Copper sulfate
Copper sulfate
Copper sulfate
Copper sulfate
Copper sulfate
Copper sulfate
Copper sulfate
Sulfuric acid
Tbilisi sulfuric baths, Georgia.
Tbilisi sulfuric baths, Georgia.
People rest at the geothermal hot water spring
Copper sulfate
Copper sulfate
Copper sulfate
Copper sulfate
Copper sulfate
Copper sulfate
Copper sulfate
Copper sulfate
Copper sulfate
Copper sulfate
Copper sulfate
Copper sulfate