Ravenna Method - 5-Day Intensive


 "The "Ravenna Method' was developed when ancient mosaics started to have trouble with their original mortar settings and needed to be restored or transferred to other locations. It is a combination of the ancient direct method and the restoration methods developed at that time. 

The Ravenna Method applies ancient methods of laying tesserae, is useful in contemporary applications, and is still used by many Italian professional mosaicists today. In the Ravenna method, materials are set into a temporary bed of lime paste or clay where they can be moved and changed until the final effect is achieved. The temporary bed of clay or lime paste remains moist for weeks and months; meaning it can be left it and returned to when you are ready to work again. Once complete the mosaic is transferred to a permanent mortar bed.  

Some of the main advantages of the Ravenna method are:

        -  Changes are easily made by removing tesserae directly from the moist clay
        - You are always working on the right side or face of the mosaic and as it will look when finished.
        -  The mosaic can be worked on while sitting upright, and can be viewed from a distance to see how it is reading to the eye

Instruction in the use of hammer and hardie (the traditional tools for cutting smalti and stone) is covered, practiced and used with stone and Italian smalti glass to reproduce a portion of a classical mosaic.  Hammers and Hardies are provided. We do not use nippers in this class. If you are able to hit a nail with a hammer you should be able to learn these tools. If you have difficulty keeping your hands steady you may find this class frustrating.

Students will choose a reproduction from the list I send them after registration. These kits will be purchased and acquired by the student from diMosaico.com ahead of time and brought by you to the class. Students will have 2 1/2 days to complete their cutting and laying their reproduction. We then begin the extraction and setting process over the final two days. 

During and in-between the final processes of the Ravenna method reproduction in the final two days,  students also work on a 2nd smaller contemporary mosaic with a simple monochrome design of their own in white, grey and black, working directly into thin-set mortar. This second mosaic serves as an exercise in value/contrast without the distraction of color.

Some of the class topics covered include:

  • Mosaic terminology

  • Origins of Ravenna method and step by step processes

  • Ancient cutting techniques with hammer and hardie and proper alignment of body and tools

  • Developing and printing a design to temporary clay bed

  • “Andamento” , “Value” and classic principles of laying tesserae for both subject and backgrounds

  • Mosaic Materials, Substrates and Binders: preparation, properties and appropriate selection

  • Demos of alternate “finishing” options for mosaic including “cocciopesto” treatment

  • Demo of mounting a hardie in base

  • Several other Direct Method techniques.

Here is a link to a video by Michael Kruzich's teacher Luciana Notturni in her Ravenna school The Mosaic Art School explaining the Ravenna method: http://www.youtube.com/watch?v=dVqnd0MCcW0 

This is a class for the serious mosaic student who is ready to knuckle down, work hard and discover how the classical principles of mosaic can be of value in developing your own mosaic work. This is not a socializing course. I want you to have fun but you will be VERY busy as will everyone, and this is to be respected. If you need a lot of socializing during class hours, this is NOT the course for you.

This is an intensive course with an immersive schedule. Please note there is very little opportunity to make up missed time.

Material Fees

*Ravenna Method students will be responsible to individually purchase a reproduction kit, stone or smalti materials for 2nd mosaic and cutting practice packets from diMosaico prior to the class and bring these with them.

Students will receive an email from Michael 30 days prior to the course (at the latest) with a selection of reproduction kits to choose from and a code with which to order their choice directly from diMosaico and delivered to them to bring to class.

There are approximately 40 reproduction kit subjects to choose from in Beginner/Intermediate/Advanced levels and range in price from approximately $45-$270 depending on the kit and materials involved. Additionally, after the course students will have the ability to order further reproduction kits from diMosaico to continue their practice.

*There will be an additional Materials fee of $30 paid on the first day of class directly to Michael covering the cost of your frames, handouts, clay and other materials provided for this method.


Held at MKMosaics Studio-San Francisco, CA

July 10-14, 2019

Ravenna Method 5-Day Intensive and 5-Day Returning Student Intensive


Semi-Private rate: $800  

Private rate: $1000         

Materials Fees: Student acquires Reproduction Kit, 2nd mosaic materials and Cutting Practice packet from diMosaico. $30 paid on first day

Register: kruzline@gmail.com

Classes at MKMosaics Studio are kept to a maximum of 3-4 students. To run a class must have a minimum amount of 2 students.
Please do not delay in signing up. 
Many people come in from all over the United States for class and need to make travel arrangements.

Class is a go when the minimum amount of students sign up. 
If the minimum amount of 2 students is not met one month prior to the course, I will contact any student signed up to ask if they would like to pay the “private” rate and keep the class as scheduled. If the single student does not wish this, the class will be cancelled and they will have the option to reschedule or receive a full refund.

Deposits, Tuition and materials fees are refundable up to 30 days prior to the start of the class. 

If student cancels after 4 weeks from class start date a refund will be made minus $50.00.
We will take payments for class with last payment to be made one month before class. 

Please contact me at kruzline@insf.net to make arrangements.

My studio is located in an artist’s collective called “The Point” in the Hunter’s Point Shipyard in the Bayview area of San Francisco. Though it is accessible by Public Transportation, this area takes quite a while to commute to and from, therefore it is advisable to have a car. Once registration and payment are received I will send you more detailed information about your course and how to get here.


Held at diMosaico-Tucson, AZ

November 13-17, 2019

March 4-8, 2020

Instructor:  Michael Kruzich
Sessions: 5, Wednesday through Sunday 10:00a - 6:00p
Level:  Any
Cost: $600
Materials: variable + $30 paid to instructor on the first day

What Michael's students say...