"WardsSci000478"

Foliated biotite, coarse, silvery gray with quartz-feldspar bands.

Represents a Wide Range of Depositional Environments and Rock Textures

Light gray, earthy.

Light pink, massive, crystalline, translucent.

Measure relative humidity with weather bureau-type wet and dry bulb thermometers. Pocket-sized psychrometer is perfect for student use, as it presents no mercury hazards.

Pure, bright yellow, Frasch sulfur.

Ward's® highest quality and purest mineral offerings.

Fine, common limestone; massive, and will fizzle with HCl.

Bright metallic cubic cleavages; lead ore.

Brownish gray, kerogen-rich; commercial oil source.