Sargent-Welch Rock Specimens, Igneous, ANDESITE, Gray with dark hornblende phenocrysts, Student Specimens, Pkg. of 10
In stock

Special promotions and discounts do not apply to this item.

Sargent-Welch Rock Specimens, Igneous, ANDESITE, Gray with dark hornblende phenocrysts, Lab Specimens, Each
In stock

Sargent-Welch Rock Specimens, Igneous, BASALT, Grayish-black trap rock, Student Specimens, Pkg. of 10
In stock

Sargent-Welch Rock Specimens, Igneous, BASALT, Grayish-black trap rock, Lab Specimens, Each
In stock

Special promotions and discounts do not apply to this item.

Sargent-Welch Rock Specimens, Igneous, BASALT, Vesicular; Dark gray with abundant vesicles, Student Specimens, Pkg. of 10
In stock

Sargent-Welch Rock Specimens, Igneous, BASALT, Vesicular; Dark gray with abundant vesicles, Lab Specimens, Each
In stock

Sargent-Welch Rock Specimens, Igneous, DIORITE, Dark, coarse-grained, abundant hornblende, Student Specimens, Pkg. of 10
In stock

Special promotions and discounts do not apply to this item.

Sargent-Welch Rock Specimens, Igneous, DIORITE, Dark, coarse-grained, abundant hornblende, Lab Specimens, Each
In stock

Sargent-Welch Rock Specimens, Igneous, GABBRO, Coarse-grained, dark, Student Specimens, Pkg. of 10
In stock

Sargent-Welch Rock Specimens, Igneous, GABBRO, Coarse-grained, dark, Lab Specimens, Each
In stock

Sargent-Welch Rock Specimens, Igneous, GRANITE, Coarse; Coarse-grained, porphyritic, pink, Student Specimens, Pkg. of 10
In stock

Sargent-Welch Rock Specimens, Igneous, GRANITE, Coarse; Coarse-grained, porphyritic, pink, Lab Specimens, Each
In stock

Sargent-Welch Rock Specimens, Igneous, GRANITE, Medium; Medium-grained with biotite, gray, Student Specimens, Pkg. of 10
In stock

Sargent-Welch Rock Specimens, Igneous, GRANITE, Medium; Medium-grained with biotite, gray, Lab Specimens, Each
In stock

Sargent-Welch Rock Specimens, Igneous, OBSIDIAN, Black volcanic glass, Student Specimens, Pkg. of 10
In stock

Sargent-Welch Rock Specimens, Igneous, OBSIDIAN, Black volcanic glass, Lab Specimens, Each
In stock

Sargent-Welch Rock Specimens, Igneous, PERIDOTITE, Dark gray, coarse-grained, Student Specimens, Pkg. of 10
In stock

Sargent-Welch Rock Specimens, Igneous, PERIDOTITE, Dark gray, coarse-grained, Lab Specimens, Each
In stock

Sargent-Welch Rock Specimens, Igneous, PUMICE, Glassy, light gray, Student Specimens, Pkg. of 10
In stock

Sargent-Welch Rock Specimens, Igneous, PUMICE, Glassy, light gray, Lab Specimens, Each
In stock

Sargent-Welch Rock Specimens, Igneous, RHYOLITE, Pale pink felsite with phenocrysts, Student Specimens, Pkg. of 10
In stock

Sargent-Welch Rock Specimens, Igneous, RHYOLITE, Pale pink felsite with phenocrysts, Lab Specimens, Each
In stock

Sargent-Welch Rock Specimens, Igneous, RHYOLITE, Flow; Light gray showing flow structure, Student Specimens, Pkg. of 10
In stock

Sargent-Welch Rock Specimens, Igneous, RHYOLITE, Flow; Light gray showing flow structure, Lab Specimens, Each
In stock

Sargent-Welch Rock Specimens, Igneous, SCORIA, Gray to reddish brown; basaltic, Student Specimens, Pkg. of 10
In stock

Sargent-Welch Rock Specimens, Igneous, SCORIA, Gray to reddish brown; basaltic, Lab Specimens, Each
In stock

Sargent-Welch Rock Specimens, Igneous, TUFF, Fine gray, rhyolitic, Student Specimens, Pkg. of 10
In stock

Sargent-Welch Rock Specimens, Igneous, TUFF, Fine gray, rhyolitic, Lab Specimens, Each
In stock