TY  - BOOK
AU  - Petersen,Christine
TI  - Groovy gems
T2  - Rock on! A look at geology
SN  - 9781604537437 (lib. bdg.)
AV  - QE392.2 .P48 2010
U1  - 553.8 22
PY  - 2010///
CY  - Edina, Minn.
PB  - ABDO Pub.
KW  - Gems
KW  - Juvenile literature
KW  - Precious stones
KW  - sears
N1  - Includes index; Erasmus's lucky pebble -- What is a gem? -- Most gems are minerals -- Six crystal systems -- Magma gems -- Water gems -- Living gems -- Imitations and synthetics -- Cultured pearls -- Working with gems -- Then and now; 5.1; Follett Library Resources; 3-6; Follett Library Resources
N2  - An introduction to geology that uses full-color photographs and easy-to-read text to describe the different properties of gems
ER  -