aphanitic

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EISCO Raw Basalt, Igneous Rock Specimen - Approx. 1" - Geologist Selected & Hand Processed - Great for Science Classrooms from $8.99	EISCO 6PK Raw Rhyolite, Igneous Rock Specimens - Approx. 1" - Geologist Selected & Hand Processed - Great for Science Classrooms - Class Pack from $19.99
EISCO Andesite Specimen (Igneous Rock), Approx. 1" (3cm) from $9.99	EISCO Rhyolite Specimen (Igneous Rock), Approx. 1" (3cm) from $10.99
Aphanitic from $0.99	Aphanitic from $0.99
Aphanitic from $1.29	Aphanitic from $0.99
EISCO Andesite Specimen (Igneous Rock), Approx. 1" (3cm) - Pack of 12 from $41.49	EISCO Rhyolite Specimen (Igneous Rock), Approx. 1" (3cm) - Pack of 12 from $41.49