Quadrivium Supplies, Inc. is a producer and distributor of supplies for ritual magicians. Our main product is Quadrivium Oils™, which are hand-made ritual oils, created according to the lunar calendar and planetary hours. Certain oils are electional, created at times determined by an expert astrologer trained in this discipline.

Each Quadrivium Oil™ is hand made, sealed, labeled, and packaged securely in a sealed bag with an insert that provides information about that particular oil, known or potential allergens/irritants in the oil, and other useful information. The oils are made with entirely natural ingredients, without chemicals, synthetics, or solvents.

Quadrivium Oils™ are available to purchase from wholesale customers only. For a list of oils available to wholesale customers, please visit the oil index as well as our wholesale information page. There is a list of online and brick-and-mortar stores that carry our oils here.

In addition to the standard list of 20 oils we produce, we also accept commissions for the creation of oils and incenses. We also mix oils together for certain purposes, or turn them into sprays, for a small additional fee.
New oils are offered through one particular physical store, and then made available to the other stores that carry Quadrivium Oils™.

Quadrivium Supplies is owned and operated by Catherine Diedrich, a magical practitioner with a background in Roman Catholicism, NeoPaganism, hermeticism, traditional witchcraft, and American folk magic. She hates talking about herself in the third person, and is assisted by a number of magical practitioners, herbalists, and one very good astrologer. She has a husband and two daughters, she lives on the north side of Chicago, and this is what she looks like (photo by Mark Minton for Echoes Magazine):

There's a media archive of interviews, text and voice, with Catherine, which also includes a link to a YouTube interview so you can see a candle anointing. Visit the archive here.

We are always happy to interact with our customers on our Facebook page, our Twitter account, and the Quadrivium Supplies Blog. An archive of interviews and lectures given by the owner of the company is being created.

Please contact us via email at



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