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

D8M

D8M

DescriptionIron khaki and my green and gold crystalline glaze. The ground is a delicate pale green with a fine dusting of secondary crystals. The primaries are golden with vivid structure.DetailsCode: D8M Year: 2026 Height: 210 mm Porcelain: TP160D8M. Dyneley Lane,...

D8J

D8J

DescriptionThis piece has a lot of interest in a small size. Iron khalki on the neck and my blue and purple crystalline glaze on the body. The primary crystals are mid blue with prominent growth rings. The ground makes this glaze unusual, a combination of secondary...

D6M

D6M

DescriptionIron red and my pale green and tan crystalline glaze. The variation of the iron red on the neck is a new formulation based on a shale that outcrops close to my workshop. It is known as the 'Accrington mudstone formation', the same rock type that is the...

D71

D71

DescriptionThis is a variation of my dark green crystalline glaze. Etching after the firing has created a silky satin matt surface on the body. Vivid dusky green crystals float on a ground grading from white to pale green.DetailsCode: D71 Year: 2026 Height: 205mm...

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

D8M

D8M

DescriptionIron khaki and my green and gold crystalline glaze. The ground is a delicate pale green with a fine dusting of secondary crystals. The primaries are golden with vivid structure.DetailsCode: D8M Year: 2026 Height: 210 mm Porcelain: TP160D8M. Dyneley Lane,...

D7C

D7C

DescriptionIron khaki on the neck and my mid blue/green crystalline glaze on the body. The vivid primary crystals are a soft blue and float on a complex ground packed with different types of secondary.DetailsCode: D7C Year: 2026 Height: 205 mm Porcelain: TP150D7C. Wet...

D4R

D4R

DescriptionIron khaki and my mid blue crystalline glaze. Soft blue crystals with vivid holographic structure float on a complex ground of secondaries. Photographed on a bright spring day in a river valley of the Lancashire Pennine hills. DetailsCode: D4R Year: 2026...

CVN

CVN

DescriptionIron aventurine and iron gold zinc silicate glazes on a porcelain bowl form. The aventurine contains tiny plate-like crystals in the glass the reflect light creating a sparkling effect. On this bowl, I have used aventurine for the entire...

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...