
Next to quartz, calcite is the world’s most abundant mineral. Limestone and marble are both made of nearly pure calcite: limestone is sedimentary rock made of calcite; marblemetamorphosed limestone. While ᧐ ? ᧀ 俸 ᥐ ᥰ ᦐ ᦰ ᧠ ᧐ ᩰ ᪐ ᪰ ᬐ ᬰ ᭐ ᧐ ᨠ 㵸 侨 㮨 㮈 抈 ᱠ ᲀ in Washington at the ACS National Meeting, take time to visit the many buildings, monuments, and statues made of this versatile material.