"The Mystery of Lyle and Louise"

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Light gray, fine small clasts.

Dense and massive.

Hematite-cemented quartz; orthoquartzite.

Pure, large, transparent-to-translucent cleavages, Mohs’ hardness of 4.

Chlorite-bearing.

Shiny black volcanic glass showing conchoidal fracture and some spherulites.

Brownish black, intermediate stage between peat and bituminous coal.

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

Used to investigate wavelength in air.

Play sand provides tactile and sensory stimulation necessary for the development of a child's imagination, hand-eye coordination, and fine motor skills such as shoulder stability, forearm rotation, wrist control, and hand strength. Play sand also encourages creativity, visualization and social interaction.

Measure grip strength, pinch strength, and muscle fatigue wirelessly with Go Direct® Hand dynamometer.

Heavy metal rods with threaded ends that screw into retort bases.

This life size hand model shows the superficial and internal structures of the human hand, including bones, muscles, tendons, ligaments, nerves, and arteries (superficial and deep palmar arches).

This 3 part hand skeleton model shows the anatomical detail of the ligaments and tendons found in the hand, wrist, and lower forearm.

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