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Geophysics Lab Core Samples

Geophysics · Physics

Two boxes contain rock core samples and other related material. A white coloured cardboard box contains the following:
– 11 cylindrical rock samples (~2.7 cm diameter). These are numbered with a permanent marker.
– 7 cuboid samples of various materials. The chemical compositions of these are marked on their surfaces.
– 2 square objects with roughly the same footprint as the cubes (~2.8 cm side). One of thee has a short metal rod protruding from the centre of one side.
– 4 cylindrical clear plastic holders (3.1 cm diameter). These have a masking table attached to the outer surface. A brown coloured cardboard box contains the following:
– 41 small cylindrical mineral samples of various dimensions. All are 2.7 cm in diameter or less. Most are marked on their surfaces, often with arrows indicating their magnetic orientation.
– One metal coil wrapped around a clear plastic coil.
– One square sample holder made of dark plastic.
– One sample holder made of clear plastic.

Accession Number:

Alternative Name:

Primary Materials: Mineral, Acrylic.


Most mineral samples are marked. These markings are either for identification, or to indicate physics qualities.

Dimensions (cm): (Box): Height = 5.8, Width = 14.5, Length = 14.5; (Box): Height = 7.6, Width = 15.3, Length = 11.


These laboratory samples were used with two teaching experiments at the University of Toronto Department of Physics geophysics section: remanent magnetization (see and magnetic susceptibility ( Most of the material in box is likely associated with the latter, and box with the former.

Remanent magnetization refers to the residual magnetic field in a mineral sample that indicates the orientation of the earth’s magnetic field with the mineral was formed. Magnetic susceptibility refers to a mineral’s susceptibility to magnetization.


The samples are sturdy and presumably usable. Some cylindrical samples are fractured, though it is not clear whether this indicates damage through use.

Associated Instruments:


University of Toronto Department of Physics, Geophysics Laboratory.

Date of Manufacture: c. 1970-1990


These samples were acquired from the Department of Physics Advanced Physics Laboratory on September 3, 2019. Dr. David Bailey transferred the items.

Additional Information and References:

Historical Notes:


  • Donated to UTSIC