CrystallineGlaze

Porcelain Ceramics with Crystalline Glaze

530 Sales

CrystallineGlaze

Porcelain Ceramics with Crystalline Glaze

530 Sales On Etsy since 2008

5 out of 5 stars
(118)
Shop owner

Jon Price

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Announcement   All of my ceramics are high-fired porcelain with a crystalline glaze. The crystals GROW IN THE GLAZE while it is held at a very high temperature.

Since rather few people have seen this very unusual ceramic glaze, here are a few facts about it:

The patterns you see on every piece of pottery are due to the many crystals that grew in the glaze.

The number of crystals and their sizes, shapes, and colors are determined not only by the chemicals in the glaze, but also depend heavily upon the exact heating schedule that each piece of pottery underwent while firing. And since each ceramic shape (vases, bowls, ornaments, jewelry, etc.) fires somewhat differently, the crystal designs also depend upon the shape of the piece.

This ceramic glaze was developed in France in 1850, but has been rarely used because of the technical difficulties associated with its firing.

In my 25 years of working exclusively with this glaze on porcelain I have been able to develop many colors and crystal patterns that are very striking. Whether you are looking for a gift idea or something special for yourself, I believe that you will find my crystalline glazes to be of great interest.

Every piece is unique. It is not possible to exactly replicate any given pattern of crystal formation.



DISCOUNTED ITEMS

Like other potters, I sometimes have items come out of the glaze fire with small imperfections: a small glaze bubble, thin glaze spot, etc. Depending upon the type and size of the imperfection, I sell these items at a discount ranging from 30 to 50%. I know that many others would sell items with such small imperfections for their full price, but I prefer to discount them.

The listings for discounted items clearly state the imperfection and I show it in the photographs. At a show, my customers usually cannot find the imperfections until I point them out. Please note that these are NOT SECONDS; they have no cracks or other structural defects.

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PLEASE see my SHOP POLICIES page for important ordering and shipping information.

Announcement
Last updated on Jan 15, 2016

All of my ceramics are high-fired porcelain with a crystalline glaze. The crystals GROW IN THE GLAZE while it is held at a very high temperature.

Since rather few people have seen this very unusual ceramic glaze, here are a few facts about it:

The patterns you see on every piece of pottery are due to the many crystals that grew in the glaze.

The number of crystals and their sizes, shapes, and colors are determined not only by the chemicals in the glaze, but also depend heavily upon the exact heating schedule that each piece of pottery underwent while firing. And since each ceramic shape (vases, bowls, ornaments, jewelry, etc.) fires somewhat differently, the crystal designs also depend upon the shape of the piece.

This ceramic glaze was developed in France in 1850, but has been rarely used because of the technical difficulties associated with its firing.

In my 25 years of working exclusively with this glaze on porcelain I have been able to develop many colors and crystal patterns that are very striking. Whether you are looking for a gift idea or something special for yourself, I believe that you will find my crystalline glazes to be of great interest.

Every piece is unique. It is not possible to exactly replicate any given pattern of crystal formation.



DISCOUNTED ITEMS

Like other potters, I sometimes have items come out of the glaze fire with small imperfections: a small glaze bubble, thin glaze spot, etc. Depending upon the type and size of the imperfection, I sell these items at a discount ranging from 30 to 50%. I know that many others would sell items with such small imperfections for their full price, but I prefer to discount them.

The listings for discounted items clearly state the imperfection and I show it in the photographs. At a show, my customers usually cannot find the imperfections until I point them out. Please note that these are NOT SECONDS; they have no cracks or other structural defects.

-------------------------------------------------------------

PLEASE see my SHOP POLICIES page for important ordering and shipping information.

Jon Price

Contact shop owner

Jon Price

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About

I love ceramics

As a third-generation potter, I learned a lot about making and designing ceramics from my family. From my mom I learned the subtleties of design and how the glaze and shape must complement each other. From my dad I inherited the excitement of creating new glazes.

After many years of making raku and stoneware ceramics, in 1989 I decided to take up the challenge of creating crystalline glazes. Ever since it has been the only glaze I've used: It is terrific.

Although I've already developed many unique crystalline glazes, I spend much of my time experimenting to create ever new ones.

Working with crystalline glazes is particularly interesting, because you never know exactly what the glaze is going to look like until after it is fired. The number, sizes, shapes, (and often the colors) of the crystals depend not only on how thickly the glaze is applied, but also on the rate at which the glaze is heated up and cooled down. It also depends upon the maximum temperature (usually about 2450 degrees) that the glaze is fired to. Varying that temperature by only 5 degrees often makes a glaze look very different.

In order to carefully control the glaze firing, I built my own kiln, so I could use the particularly beautiful HI-FIRE crystalline glazes. (Few commercial kilns can fire as high as this glaze needs.) In addition, I built-in some special features that enable me to precisely control the atmosphere in the kiln (primarily its oxygen and carbon content). Since the colors and brightness of the glaze are strongly dependent on the atmosphere, this gives me the ability to produce glazes that no one else has been able to achieve.

Every time I open my kiln, it is an exciting experience.

As this glaze is often difficult for someone to learn to use, I have published a book with detailed, step-by-step instructions on its use. It is my hope that many others will also be able to experience the excitement of dealing with this glaze. (I have copies of it listed here, in my shop.)

If you are not familiar with Crystalline Glazes, you will find a brief description of them on my Policy page: https://www.etsy.com/shop/CrystallineGlaze/policy?ref=shopinfo_policies_leftnav.

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  • Jon Price

    Owner

    I'm a third-generation potter. My grandmother started in 1946, and our family has been doing it ever since. My parents specialized in raku. In 1989 I decided to take on the most challenging of all ceramic glazes: CRYSTALLINE. And I love it.

Shop policies

Last updated on January 29, 2016
If you've never seen my crystalline glazes before, you might want to read the next few paragraphs. If you have already seen them, you have an advantage, because it is really impossible to adequately describe them. But I'm going to try.

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WHAT ARE CRYSTALLINE GLAZES?

Crystalline glazes are those special ceramic glazes in which crystals actually GROW IN THE GLAZE while it is still very hot (over 2000 degrees F). The crystals start out as microscopic spots in the glaze, called "seeds." These seeds form spontaneously in the glaze, in random numbers and locations. Then when the glaze is held at the crystal growing temperature (from 6 to 12 hours), the crystals start growing on the seeds. The longer the glaze is held at that temperature, the larger the crystals get - until the maximum size for that particular glaze is attained.

In order for the crystals to grow, the glaze must be very fluid. Because of this, much of the glaze runs off the piece during the firing. In order to contain the glaze, a catch basin and specially-shaped pedestal are made for each piece. The piece is placed on the pedestal in the catch basin for the firing. After the firing, the piece is carefully separated (with some difficulty) from the pedestal, and its bottom is ground flat.

WHY IS THIS GLAZE SUCH A CHALLENGE?

Most potters consider crystalline glazes to be the most difficult and challenging of all glazes to produce. This is because they are unusually difficult and time-consuming to formulate and fire. They require meticulous attention to every detail. Also, the "success rate" is much lower for this glaze than for any other. Often less than 50% of the pieces turn out; the others either have poor color or no crystals.

This glaze is extremely fickle. One can fire it in exactly the same way two days in a row, and it will come out quite differently each time. Consequently, the results are quite unpredictable, both as to numbers and sizes of crystals.

GLAZE COLORS

Without getting too technical, you might be interested to know that my crystalline glazes come in two color categories: 1. Oxygen-fired and 2. Reduction-fired.

The oxygen-fired colors are fired in ordinary air. These colors are quite reproducible. They include blue, green, mauve, and the very distinctive blue crystals on a tan background.

The reduction-fired colors are fired in a special atmosphere created by burning all of the oxygen out of the kiln. These colors are very fickle. They usually turn out differently in every kiln load. Reduction-fired colors include red, orange, yellow, and purple. These colors vary greatly from one firing to the next.

As you already know, the colors that you see on your monitor may well not be exactly the same as the color of the item. Also the depth and details of the crystals do not show in a photo.


WHAT DOES OPTICALLY ACTIVE MEAN?

Most of the crystals that form in my glazes are "optically active". This means that as you change the orientation of the crystals you are looking at (for instance, by rotating the pot in your hands) their colors change somewhat or they reflect light differently often giving the illusion that they are rotating.. No other ceramic glaze has this exciting effect. And there is no way this can be shown in a photograph. You have to see it to fully appreciate it.

DISCOUNTED ITEMS

Like other potters, I sometimes have items come out of the glaze fire with small imperfections: a small glaze bubble, thin glaze spot, etc. Depending upon the type and size of the imperfection, I sell these items at a discount ranging from 30 to 50%. I know that many others would sell items with such small imperfections for their full price, but I prefer to discount them.

The listings for these items clearly state the imperfection and I show it in the photographs. At a show, my customers usually cannot find the imperfections until I point them out. Please note that these are NOT SECONDS; they have no cracks, chips or other structural defects.

FOR MORE INFORMATION ON MY CERAMICS

Please visit my website: www.JonPriceCeramics.com. I do not sell anything on that site, but I do have a list of some of the stores that carry my work.

I also list many of my upcoming shows there. If one is near you, I hope you will take the opportunity to come by and see me. I will always have a large number of items for you tp choose from.

Accepted payment methods

  • Accepts Etsy gift cards
  • Money Order
Payment
I prefer payment through PayPal. (You can follow the link to PayPal at check out.) You do not need a PayPal account in order to use a credit card with PayPal. Simply select the option to pay without an account.

I can also directly accept MasterCard and Visa credit cards, but I feel that going through PayPal is a more secure transaction.

I also accept USPS postal money orders. At this time I do not accept personal checks or other types of money orders.

I pay the insurance on all items.
Shipping
FREE STANDARD SHIPPING ON ALL CERAMIC ORDERS.

At present, I am shipping items only within the U.S.

My STANDARD shipping is by USPS Retail Ground. As you know, it can sometimes take a week or more for such packages to arrive. If you desire some other arrangement, contact me and we'll work it out.


I ordinarily ship within 1 to 2 business days of receiving your payment. However, if I am out of town at a craft show it may be 4 to 6 days before I can ship it. Also if you use a PayPal e-check, I must wait several days for it to clear before I can pack and ship.


I am always concerned that your items arrive promptly and safely. Items are always securely packed to prevent breakage. They are wrapped with bubble wrap and larger pieces are double-boxed. I have not had a single item break in transit in the past 10 years.

If your PayPal address is different from your Etsy shipping address, please tell me which one to ship to.
Refunds and Exchanges
I want you to be completely satisfied with your purchase. My work is always 100% satisfaction guaranteed.

If you are at all unhappy about your purchase, please notify me within 3 days of arrival. I will gladly refund the price of the item upon its safe return. Shipping fees are nonrefundable. If you return it, please carefully repackage the item in the packing materials in which you received it and return it to me in its original condition. You are responsible for the return shipping and insurance. (Actually, you can either send it to me or hand it to me when you see me at a show.)

If an item breaks during shipment, please immediately send me a photograph so I can properly take care of it.