Blue glaze with green variation. Breaks brown where thin (e.g. rims)


Amaco Blue Rutile

Brown/black glaze. Over Valentine VC9 buff stoneware gives a dark brown-black
breaking with interesting variation. Over Earthstone ES5 much more orange-brown.


Amaco River Rock

Blue-green brush on glaze.

Some variation in colour but not much breaking
on texture (see [[2021/tourmaline-pot]]).

Colours in the glaze separate over [[glaze/hansen20x5]],
see [[2021/casserole]]. 


Amaco Tourmaline

Unknown origin or composition. Provided by Exeter College.


Basic Chun

Based on the Folk Art Guild White recipe in John Britt's book "Mid-Range Glazes",
adapted to materials sourced from CTM Pottery Supplies.


Soda Feldspar

Spodumene

Flint

Kaolin

Dolomite

Gillespie Borate

Tin Oxide

Red Iron Oxide

Bentonite

Folk Art Guild White

Based on [Tony Hansen's 20x5 transparent glaze](https://digitalfire.com/recipe/g1214m), adapted to materials sourced from CTM Pottery Supplies.

material/ctm/potash-feldspar

Frit 3134

Wollastonite

Grolleg

Hansen 20x5

Based on [Tony Hansen's 20x5 transparent glaze](https://digitalfire.com/recipe/g1214m)
[[glaze/hansen20x5]] with 7% Tin Oxide addition for a white opaque.

This is probably too white for my taste, need to experiment with a lower
percentage addition of Tin.


Potash Feldspar

Tin White

Based on the Selsor Chun recipe in John Britt's book "Mid-Range Glazes",
coloured with Copper Carbonate and Rutile.


Whiting

Zinc Oxide

Rutile

Copper Carbonate

JP Chun Green

Based on the Leach Satin recipe in John Britt's book "Mid-Range Glazes",
adapted to materials sourced from CTM Pottery Supplies.


Leach Satin White

Based on the Petras Floating Blue recipe glazy.org,
adapted to materials sourced from CTM Pottery Supplies.


Nepheline Syenite

Talc

Cobalt Oxide

Petras Floating Blue

Based on the Selsor Chun recipe in John Britt's book "Mid-Range Glazes",
adapted to materials sourced from CTM Pottery Supplies.


Selsor Chun

CTM Black Slip

This is the [[glaze/slip-robin-hopper]] with 2% Cobalt Oxide.
Mixed to approximately 110% hydration, i.e. for 500g slip, add 550g water.


Ball Clay

Cobalt Oxide Slip

This is a well known slip with wide firing range (∆04-12). Fires white, it can
be used with oxides and stains to create coloured slips.

I normally make this up to 110% hydration, i.e. for 500g raw materials, add 550g water.


Robin Hopper Slip

A turquoise blue matt glaze. Over a light clay such as Earthstone ES5 can give
an almost tidal, beach effect when layered.

Settles out very heavily when stored, requires a lot of scraping to re-suspend.

**Contains Toxic Materials** do not use on functional surfaces


Barium Carbonate

Sophia Hughes

Based on the Spearmint recipe in John Britt's book "Mid-Range Glazes",
adapted to materials sourced from CTM Pottery Supplies.


Spearmint

Blue-gray matt-to-satin glaze. Breaks brown over edges and texture.


Terracolor Granite

This is a _very_ thin wash.  Mix a teaspoon of each
material (approx 5g) with 100ml of water.  I apply with 
a brush directly to textured bisque-ware, and then rub 
back with a damp sponge to leave the wash in the texture.
Touching the loaded brush to the surface near to 
texture lines in the clay can have the effect of drawing 
the oxide into the lines and flowing along them, highlighting 
the texture while leaving the rest of the surface free from oxide.


Ceramics

Glaze Index