Section of Karlsbader Sprudelstein rock, 2021 Photomicrography Competition

Section of Karlsbader Sprudelstein rock

Snowflake, 2021 Photomicrography Competition

Section of Karlsbader Sprudelstein rock

Section of Karlsbader Sprudelstein rock

40 million year old gnat in Baltic amber

Section of Karlsbader Sprudelstein rock

Section of Karlsbader Sprudelstein rock

Section of Karlsbader Sprudelstein rock

Karlsbad Sprudelstein (sedimentary rock)

Section of Karlsbader Sprudelstein rock

Section of Karlsbader Sprudelstein rock

Section of Karlsbader Sprudelstein rock

Section of Karlsbader Sprudelstein rock

Karlsbad Sprudelstein (sedimentary rock)

Karlsbad Sprudelstein (sedimentary rock)