Home / 2021 Courses / 20A -2021- José M. Mariscal – Form and Surface: The Magic of Crystalline Glazes

20A -2021- José M. Mariscal – Form and Surface: The Magic of Crystalline Glazes

20A -2021- José M. Mariscal – Form and Surface: The Magic of Crystalline Glazes
The course has been moved to Spring 2022

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This workshop touches two arguments in theory and hands on application: a first partof throwing with very specific techniques and  a second p art of making and application of crystalline glazes. Participants will learn to make suitable forms that enhance the magic of crystalline glazes and furthermore learn what to consider in formulating such glazes.

Techniques taught

In the workshop we will address form and surface. Firstly, by dedicating time to making double walled vessels and forms with long necks that will be thrown in two parts. Secondly, studying texture techniques for a variety of finishing on pieces. The last 4 days consist in a practical part with the formulation and application of some basic glazes, to continue with a technical part to understand the process.  The magic of crystalline glazes will be unveiled through glaze formulation, frits best suited for cristals, the theory of crystallization, temperatures, application and firing methods. Equally, reduction and post-reduction treatments with acids and the formulation for red backgrounds will be discussed in depth.  With tips and tricks out of his vast experience José Mariscal will help participants to avoid typical errors, thus creating the foundation for successful  exploriation of the process in the future.


On every classday, a delicious meal will be served. Lodging is included as well.The workshop is suitable for students with at least some throwing experience and will be taught in english.

The artist

José Mariscal is the son of a potter and learned to turn the potter’s wheel as a boy in his father’s workshop. In 1992 he started as a potter at Ceramicas Martinez in Vulpellac. He went from studio to studio and improved his throwing technique to perfection. In 2003 he opened his own workshop and began to experiment with different glazing techniques, to work with engobes, as well as with raku, naked raku and terra sigillata. In 2010, José Mariscal bought an electric kiln and started developing his crystal glazes. www.ceramicasjosemariscal.blogspot.com



José M. Mariscal


June 12 – 18 2022

Length of course

5 working days in the studio


Surface techniques, Throwing


Throwing and glaze formulation. Non beginners


€ 1300


€ 400



May 17th and 18th

Throwing. Demos and practical work with guidance from the teacher. Textural techniques basedon tension, slips and organic material

May 19th

  • Formulation of glazes;
  • Application of glaze;
  • How to apply alumina to place the pedestals;
  • Firing schedules and first electric firing.

May 20th

  • Theory of crystallizations. Powerpoint presentation;
  • How are glazes formed? At what temperatures?
  • Explanation of electric or gas firing (oxidation), reduction firing in gas kiln and post reduction;
  • Explanation of different frits, how they work, which are the best for crystalline glazes;
  • Tips and tricks to keep in mind to get the best results;
  • Typical errors;
  • Mixing and application of more glazes for the second firing.

May 21st

  • Unpacking of the kiln / separation of the pieces from the pedestal;
  • Study of the results og the first firing;
  • Second firing in the electric kiln.
  • Treatments with acids to modify the result of the pieces for the second kiln;
  • Post reduction firing in the raku kiln.

May 22nd

  • Kiln opening and study of the results
  • Last questions.


The workshop fee includes the following:
Tuition of 6 – 8 hours per day;
Studio open 12 hours per day;
All materials and firings;
Lodging in double room; single room on request at additional fee of 220 euro 180 euro per week;
Freshly prepared three course lunch with wine on all working days;
Welcome breakfast, Welcome and Final dinner;
Coffee break in the mornings and in the evenings.

Payment and Refund Policy

A deposit is required at registration. After submitting the registration form, you may proceed with the payment on-line. If you choose to pay by bank transfer, the registration will be confirmed once the deposit has been accredited in our banking account. The balance must be paid at the beginning of the course.

You may withdraw within 14 days of registration without incurring in any penalties and will have the deposit fully refunded.  No refund of deposits past 14 days of registration, pursuant to articles 53 and following of the EU consumer protection legislation.
If La Meridiana cannot hold the course due to unforeseen events beyond our control, La Meridiana reserves the right to offer a voucher for a different course of your choice. The voucher is valid for two years. The deposit will be transferred to the new course.


La Meridiana is equipped to comply with the current safety standards regarding Covid-19, including social distancing between people in and outside the studio. The daily maintenance of hygiene measures is guaranteed.  Please note that participants will be required to follow the security protocol and to comply with some simple precautions.


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