"WardsSci000478"

Dark, waxy, bitumin-rich.

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An introductory rock set contains six samples from each of the three major rock types.

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[NA_SciEd] Ward's® Schist (Talc Tremolite)

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White, fine, massive, opaque to slightly translucent.

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Examples of the More Important Minerals Found in Rocks

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Light gray, earthy.

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Brownish gray, kerogen-rich; commercial oil source.

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Gray-to-brown basaltic, with over 50% vesicles.

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Polished, etched iron meteorite slice showing Widmanstatten structure, 1–1 1/2".

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Unpolished metamorphic rock with silky lusture, red-brown colour, and clear parallel intergrown quartz crystals.

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