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"PARKWAY PLASTICS, INC."
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Ward's® Tuff (Rhyolitic)
Gray, fine, friable, with abundant small sanidine crystal fragments.
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Ward’s® SiliClone Frog
Simulated silicone specimen, designed for modern learning.
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Ward's® Anorthoclase
Feldspar group; greenish gray alkali feldspar, coarse crystalline, some iridescence.
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Ward's® Peridotite (Coarse-Grained)
Dark gray, composed mostly of pyroxene and olivine.
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Ward's® Muscovite (Cleavage)
Mica group; cut sheets showing basal cleavages. Books and sheets in bulk pack.
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Ward's® Diorite
Coarse, 'salt and pepper': dark pyroxene and light andesine. Provides perfect representation of an intermediate igneous rock.
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Ward's® Caliche
Hardened natural cement of calcium carbonate that binds other material such as gravel, sand, clay, and silt.
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Ward's® Quartz (Chert)
Light gray, compact, hard, opaque, microcrystalline silica mineral.
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Ward's® Conglomerate (Quartz)
Small, rounded pebbles and tightly cemented granules.
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Half Life Analogue Demonstration
Students actively model the concept of half-life and radioactive decay.
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Ward's® Fluorite (Fluorescent)
Brown, fluorescent crystals intergrown in dolomite rock.