- FundoMG 146 - W.O. Kupsch fonds
- SérieJ. Audio-Visual Materials
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- ItemWOK 18-146 - Gypsum, var. Selenite, South Dakota. A "Fish-tail" twin
- ItemWOK 18-147 - Agate, Brazil. Banded grey agate, crystalline quartz and amethyst
- ItemWOK 18-148 - Quartz, var. Milky quartz, Curay, Colorado. A choice group of large milky white crystals
- ItemWOK 18-149 - Quartz, var. Rock crystal, Little Falls, New York.
- ItemWOK 18-150 - Quartz, var. Petrified wood, near Holbrook, Arizona
- ItemWOK 19-1 - Smoky quartz, St. Gothard, Switzerland. A group of smoky crystals
- ItemWOK 19-2 - Quartz twin, Japan. Typical "Japanese" twin.
- ItemWOK 19-3 - Fluorite, Cave-in-Rock, Illinois. A group of large purple cubic crystals
- ItemWOK 19-4 - Fluorite, Westmoreland, New Hampshire. An excellent example of the octahedral cleavage fluorite
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