Terracolor 645 Blue Marble From  £15.60

Used this as a dipping glaze and fired to 1220 C, very pleased with the result. It breaks well on edges

Like other reviewers this glaze has come out darker for me (firing 1250 with a 10-min soak). It's also a much more uniform blue with a glossy finish and hints of grey/green.

Gorgeous powder blue colour, but drips terribly. Possibly need to add more water then advised.

This is a lovely glaze but isn't like the picture. For me (firing 1240) it's a significantly darker blue, with a semi-glossy finish.

This glaze is darker than in the picture shown but yet very lovely. It is a soft greenish blue and has fabulous white speckles when on thick with a satin finish. I am using E/S10 clay and this was fired at 1240c. I have only used it once so far but am pleased with it and even though not as light as in the picture, this is a great combination colour.

Fired at 1220c with 13mim hold. Comes out matt dark blue and really really runs! The colour is lovely but not what I hoped. Will try firing again at a higher temp