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Table 1 A breakdown of the rock high levels and subtype levels used in the study

From: Learning hierarchically organized science categories: simultaneous instruction at the high and subtype levels

Igneous

Metamorphic

Sedimentary

Andesite

Amphibolite

Bituminous coal

Basalt

Anthracite

Breccia

Diorite

Gneiss

Chert

Gabbro

Hornfels

Conglomerate

Granite

Marble

Dolomite

Obsidian

Migmatite

Micrite

Pegmatite

Phyllite

Rock Gypsum

Peridotite

Quartzite

Rock Salt

Pumice

Schist

Sandstone

Rhyolite

Slate

Shale