Colorful specimens, 1/2–1″ in size and housed in a clear plastic box perfect for hands-on examination or display, are permanently mounted on sturdy card stock, with specimen names on the front and background information on the back.
The set contains samples from each of the three classes of rocks; 21 in all. Size: 7″L x 3 1/2″W x 3/4″H.Contents: Igneous: basalt, dunite, pink and gray granite, obsidian, pumice; Sedimentary: chalk, coal, conglomerate, gypsum, ironstone, limestone, sandstone, shale, siltstone; Metamorphic: gneiss, marble, mica schist, quartzite, serpentine, slate.
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