"The Mystery of Lyle and Louise"

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

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Dark, waxy, bitumin-rich.

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Pure translucent to white, rhombic cleavages, Mohs’ hardness of 3.

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Formalin Preserved

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Organized, economical survey of fossils.

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Light gray, compact, hard, opaque, microcrystalline silica mineral.

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