Crystalline Ceramics

Crystalline glazed porcelain forms by Richard Bideau

Crystalline Glaze

Careful control of chemistry and firing conditions give rise to glazes that produce crystals during the firing cycle. Crystals are stunning with fantastic shapes that shimmer like holograms as light catches them. The possibilities are almost endless…

About Me

I have been exploring the crystalline process since 1997, becoming a full-time potter in 2009. My former career in chemical engineering, coupled with a lifelong association with pottery have given me the skills needed to combine art and science.

Buying

My work is sold through art galleries and exhibitions. I also have a selection of pieces available to buy directy directly.

Recent Work

D7B

D7B

DescriptionIron aventurine with an etched variation of my dark green zinc silicate glaze. The runny aventurine has created a striking interaction with the glaze below. The aventurine features tiny sparkling crystals of iron oxide and interference colours on the...

D6V

D6V

DescriptionThis unusual glaze was produced by putting the piece through the glaze firing twice and using a different glaze the second time. This is risky! I do it when I'm not satisfied with the results from the first firing. Sucess rate is low but occasionally...

D77

D77

DescriptionIron khaki on the neck and etched dark green and blue on the body. The primary crystals are a delicate green/blue with priminent growth rings. The ground is subtle, satin matt and varying from pale green to almost white. On the shoulder secondary crystals...

CTC

CTC

DescriptionThis piece features two different zinc silicate crystalline glazes: iron gold on the inside and green gold on the outside.DetailsCode: CTC Year: 2026 Height: 93 mm Diameter: 215mm Porcelain: TP058CTC. Detail of the iron gold glaze on the inside. Beater...

Latest News

Potfest in the Park 2026

Potfest in the Park 2026

My next exhibition will be Potfest in the Park located in the beautiful grounds of Hutton-in-the-Forest, near Penrith in Cumbria. The show runs from Friday July 24th to Sunday July 26th, 10 am to 4:30 pm each day.

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Potfest in the Park 2025

Potfest in the Park 2025

My next exhibition will be Potfest in the Park located in the beautiful grounds of Hutton-in-the-Forest, Cumbria. The show runs from Friday July 25th to Sunday July 28th, 10 am to 4:30 pm each day.

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Potfest in the Park 2024

Potfest in the Park 2024

  My next exhibition will be Potfest in the Park located in the beautiful grounds of Hutton-in-the-Forest, Cumbria. The show runs from Friday July26th to Sunday July 28th, 10 am to 4:30 pm each day.The kiln problems I had in November 2023 have stimulated a great...

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For Sale

D7B

D7B

DescriptionIron aventurine with an etched variation of my dark green zinc silicate glaze. The runny aventurine has created a striking interaction with the glaze below. The aventurine features tiny sparkling crystals of iron oxide and interference colours on the...

D6V

D6V

DescriptionThis unusual glaze was produced by putting the piece through the glaze firing twice and using a different glaze the second time. This is risky! I do it when I'm not satisfied with the results from the first firing. Sucess rate is low but occasionally...

D77

D77

DescriptionIron khaki on the neck and etched dark green and blue on the body. The primary crystals are a delicate green/blue with priminent growth rings. The ground is subtle, satin matt and varying from pale green to almost white. On the shoulder secondary crystals...

CTC

CTC

DescriptionThis piece features two different zinc silicate crystalline glazes: iron gold on the inside and green gold on the outside.DetailsCode: CTC Year: 2026 Height: 93 mm Diameter: 215mm Porcelain: TP058CTC. Detail of the iron gold glaze on the inside. Beater...

Stories

Hagg Wood – A day in the life of a potter

Hagg Wood – A day in the life of a potter

What does it mean to be a potter? The question is difficult to answer. The rewards are many but it can't be denied that there is a great deal of the mundane. The essential tasks of sieving and grinding are my least favorite. Opening the kiln after a glaze firing a...

Porcelain From the Carboniferous Period

Porcelain From the Carboniferous Period

With crystalline effects, the glaze is only a part of the process. The type of clay body also exerts a powerful influence on the fired result. For this reason, and many more besides, each potter, working in different parts of the world, each with its own raw...

Edinburgh and Deep Time

Edinburgh and Deep Time

Time we may comprehend, 'tis but five days elder than ourselves. Thomas Browne, Religio Medici, 1643. If the Eiffel tower were now representing the world's age, the skin of paint on the pinnacle-knob at its summit would represent man's share of that age… Mark Twain,...

Gritstone and Thunder

Gritstone and Thunder

Crystalline glazed surfaces have complex structures that change in appearance under different lighting conditions. For this photography session, the weather offered the possibility of some dramatic conditions: it was warm and humid, the wind, so often a powerful force...

Technical Articles

Testing a cup internal glaze for thermal compatibility

Testing a cup internal glaze for thermal compatibility

Cups need to withstand the thermal shock of having  hot liquid poured in over and over again. This places several requirements on the clay body and glaze coating, one of which is the need for the internal glaze and body to have compatible thermal expansion...

Ball Clay Sieve Residue

Ball Clay Sieve Residue

 Ball clays are an important constituent of my custom porcelain bodies. They influence the throwing characteristcs and exert a powerful influence on crystal growth. They tend to be minimally refined whole sediments containing coarse particles that have no place in a...

Testing a Floating Blue Glaze

Testing a Floating Blue Glaze

Recently, I was asked if I could formulate a glaze based on a recipe known as 'Old Forge B'. It is a type of glaze known as 'Floating Blue' so called because a blue opalescent layer of colour appears to float upon the glaze below. The mechanism is a high boron content...