Join our mailing list!




Home > "Cotisso" Chunks from Venice, Italy - Special Purchase


Special Purchase - "Cotisso" Glass from Venice, Italy
30 colors




"Cotisso" are blocks of colored glass made by Effetre factory in Murano/Venice, Italy. Cotisso are irregular, fascinating, and stunning chunks of raw glass. Cotisso is the basis for making millefiori glass, glass vases, glass lamps, etc. It is the basis for "Dalle de verre" mosaics. Melt and flatten and smalti is produced. This cotisso is 100% Italian glass coe 104. Perfect for mosaic artists wanting more 3D and texture in their art. Easily cut with a hammer and hardie. Thinner pieces can be cut with nippers.

Cotisso Assorted Hot Colors - Back in stock! Cotisso Assorted Neutrals - Back in stock! Cotisso Assorted Greens
Cotisso Assorted Hot Colors - Back in stock! Cotisso Assorted Neutrals - Back in stock! Cotisso Assorted Greens

Assortment of Cotisso hot colors (Opaques-Cherry Red, Yellow, Orange). 100% Italian glass coe 104. Perfect for mosaic artists wanting more 3D and texture in their art. Easily cut with a hammer and hardie or a regular hammer. Thinner pieces can be cut with nippers.
No returns, no exchanges.


1 pound assortment of Cotisso neutral colors (sand, grey, black, white). Picture shows a 1 pound quantity. 100% Italian glass coe 104. Perfect for mosaic artists wanting more 3D and texture in their art. Easily cut with a hammer and hardie. Thinner pieces can be cut with nippers.
No returns, no exchanges.


1 pound assortment of Cotisso green colors(transp emerald, green, transp aquamarine, transp blue, lime). Picture shows a 1 pound quantity. 100% Italian glass coe 104. Perfect for mosaic artists wanting more 3D and texture in their art. Easily cut with a hammer and hardie. Thinner pieces can be cut with nippers.
No returns, no exchanges.

Cotisso Assorted Blues - Back in stock! Cotisso Crystal Cotisso Opaque Black
Cotisso Assorted Blues - Back in stock! Cotisso Crystal Cotisso Opaque Black

1 pound assortment of Cotisso blue colors(transp cobalt, lavender, periwinkle, turquoise). Picture shows a 1 pound quantity. 100% Italian glass coe 104. Perfect for mosaic artists wanting more 3D and texture in their art. Easily cut with a hammer and hardie. Thinner pieces can be cut with nippers.
No returns, no exchanges.


Crystal clear chunks of fine cotisso glass. 100% Italian glass coe 104. Perfect for mosaic artists wanting more 3D and texture in their art. Easily cut with a hammer and hardie. Thinner pieces can be cut with nippers. 12 oz shown in picture.
No returns, no exchanges.


Opaque black chunks of fine cotisso glass. 100% Italian glass coe 104. Perfect for mosaic artists wanting more 3D and texture in their art. Easily cut with a hammer and hardie. Thinner pieces can be cut with nippers. 8 oz shown in picture. Solid color black, picture shows other tones from lighting.
No returns, no exchanges.

Cotisso Opaque White Cotisso Opaque Sand Cotisso Opaque Grey
Cotisso Opaque White Cotisso Opaque Sand Cotisso Opaque Grey

Opaque white chunks of fine cotisso glass. 100% Italian glass coe 104. Perfect for mosaic artists wanting more 3D and texture in their art. Easily cut with a hammer and hardie. Thinner pieces can be cut with nippers. 8 oz shown in picture.
No returns, no exchanges.


Opaque sand color chunks of fine cotisso glass. 100% Italian glass coe 104. Perfect for mosaic artists wanting more 3D and texture in their art. Easily cut with a hammer and hardie. Thinner pieces can be cut with nippers. 6 oz shown in picture.
No returns, no exchanges.


Opaque grey color chunks of fine cotisso glass. 100% Italian glass coe 104. Perfect for mosaic artists wanting more 3D and texture in their art. Easily cut with a hammer and hardie. Thinner pieces can be cut with nippers. 10 oz shown in picture.
No returns, no exchanges.

Cotisso Transparent Brown Cotisso Opaque Brown Cotisso Transparent Red
Cotisso Transparent Brown Cotisso Opaque Brown Cotisso Transparent Red

Transparent brown color chunks of fine cotisso glass. Looks like root beer. 100% Italian glass coe 104. Perfect for mosaic artists wanting more 3D and texture in their art. Easily cut with a hammer and hardie. Thinner pieces can be cut with nippers. 5 oz shown in picture.
No returns, no exchanges.


Opaque brown color chunks of fine cotisso glass, looks like chunks of chocolate! 100% Italian glass coe 104. Perfect for mosaic artists wanting more 3D and texture in their art. Easily cut with a hammer and hardie. Thinner pieces can be cut with nippers. 5 oz shown in picture.
No returns, no exchanges.


Transparent red color chunks of fine cotisso glass. 100% Italian glass coe 104. Perfect for mosaic artists wanting more 3D and texture in their art. Easily cut with a hammer and hardie. Thinner pieces can be cut with nippers. 11 oz shown in picture.
No returns, no exchanges.

Cotisso Opaque Mauve Swirl Cotisso Transparent Rose-Amber NEW! Cotisso Opaque Pink-White NEW!
Cotisso Opaque Mauve Swirl Cotisso Transparent Rose-Amber NEW! Cotisso Opaque Pink-White NEW!

Opaque mauve with swirling colors chunks of fine cotisso glass. 100% Italian glass coe 104. Perfect for mosaic artists wanting more 3D and texture in their art. Easily cut with a hammer and hardie. Thinner pieces can be cut with nippers. 11 oz shown in picture.
No returns, no exchanges.


Transparent rose-amber color chunks of fine cotisso glass. 100% Italian glass coe 104. Perfect for mosaic artists wanting more 3D and texture in their art. Easily cut with a hammer and hardie. Thinner pieces can be cut with nippers. 11 oz shown in picture.
No returns, no exchanges.


Transparent rose-amber color chunks of fine cotisso glass. 100% Italian glass coe 104. Perfect for mosaic artists wanting more 3D and texture in their art. Easily cut with a hammer and hardie. Thinner pieces can be cut with nippers. 11 oz shown in picture.
No returns, no exchanges.

Cotisso Opaque Cherry Red - Back in stock! Cotisso Opaque Orange - Back in stock! Cotisso Opaque Yellow
Cotisso Opaque Cherry Red - Back in stock! Cotisso Opaque Orange - Back in stock! Cotisso Opaque Yellow

Opaque cherry red color chunks of fine cotisso glass. 100% Italian glass coe 104. Perfect for mosaic artists wanting more 3D and texture in their art. Easily cut with a hammer and hardie. Thinner pieces can be cut with nippers. 1 pound shown in picture.
No returns, no exchanges.


Opaque bright orange color chunks of fine cotisso glass. 100% Italian glass coe 104. Perfect for mosaic artists wanting more 3D and texture in their art. Easily cut with a hammer and hardie. Thinner pieces can be cut with nippers. 11 oz shown in picture.
No exchanges, no returns.


Opaque solid yellow color chunks of fine cotisso glass. 100% Italian glass coe 104. Perfect for mosaic artists wanting more 3D and texture in their art. Easily cut with a hammer and hardie. Thinner pieces can be cut with nippers. 12 oz shown in picture.
No exchanges, no returns.

Cotisso Transparent Yellow Cotisso Opaque Dark Yellow NEW! Cotisso Opaque Lime
Cotisso Transparent Yellow Cotisso Opaque Dark Yellow NEW! Cotisso Opaque Lime

Transparent yellow color chunks of fine cotisso glass. 100% Italian glass coe 104. Perfect for mosaic artists wanting more 3D and texture in their art. Easily cut with a hammer and hardie. Thinner pieces can be cut with nippers. 12 oz shown in picture.
No exchanges, no returns.


Opaque solid dark yellow color chunks of fine cotisso glass. A few shades darker than the regular opaque yellow. 100% Italian glass coe 104. Perfect for mosaic artists wanting more 3D and texture in their art. Easily cut with a hammer and hardie. Thinner pieces can be cut with nippers. 12 oz shown in picture.
No exchanges, no returns.


Opaque solid lime color of fine cotisso glass. 100% Italian glass coe 104. Perfect for mosaic artists wanting more 3D and texture in their art. Easily cut with a hammer and hardie. Thinner pieces can be cut with nippers. 6 oz shown in picture.
No returns, no exchanges.

Cotisso Opaque Green Cotisso Opaque Light Green Cotisso Transparent Emerald
Cotisso Opaque Green Cotisso Opaque Light Green Cotisso Transparent Emerald

Opaque solid green color of fine cotisso glass. 100% Italian glass coe 104. Perfect for mosaic artists wanting more 3D and texture in their art. Easily cut with a hammer and hardie. Thinner pieces can be cut with nippers. 7 oz shown in picture.
No returns, no exchanges.


Opaque solid light green color of fine cotisso glass. 100% Italian glass coe 104. Perfect for mosaic artists wanting more 3D and texture in their art. Easily cut with a hammer and hardie. Thinner pieces can be cut with nippers. 7 oz shown in picture.
No returns, no exchanges.


Transparent emerald solid green color of fine cotisso glass. 100% Italian glass coe 104. Perfect for mosaic artists wanting more 3D and texture in their art. Easily cut with a hammer and hardie. Thinner pieces can be cut with nippers. 5 oz shown in picture.
No returns, no exchanges.

Cotisso Transparent Aquamarine Cotisso Transparent Cobalt Cotisso Transparent Light Blue NEW!
Cotisso Transparent Aquamarine Cotisso Transparent Cobalt Cotisso Transparent Light Blue NEW!

Transparent aquamarine color of fine cotisso glass. 100% Italian glass coe 104. Perfect for mosaic artists wanting more 3D and texture in their art. Easily cut with a hammer and hardie. Thinner pieces can be cut with nippers. 5 oz shown in picture.
No returns, no exchanges.


Transparent cobalt color of fine cotisso glass. 100% Italian glass coe 104. Perfect for mosaic artists wanting more 3D and texture in their art. Easily cut with a hammer and hardie. Thinner pieces can be cut with nippers. 8 oz shown in picture.
No returns, no exchanges.


Transparent light blue color of fine cotisso glass. 100% Italian glass coe 104. Perfect for mosaic artists wanting more 3D and texture in their art. Easily cut with a hammer and hardie. Thinner pieces can be cut with nippers. 8 oz shown in picture.
No returns, no exchanges.

Cotisso Transparent Blue Cotisso Opaque Periwinkle Cotisso Opaque Aqua-Malachite NEW!
Cotisso Transparent Blue Cotisso Opaque Periwinkle Cotisso Opaque Aqua-Malachite NEW!

Transparent blue color of fine cotisso glass. Not as deep a blue as the cobalt. 100% Italian glass coe 104. Perfect for mosaic artists wanting more 3D and texture in their art. Easily cut with a hammer and hardie. Thinner pieces can be cut with nippers. 9 oz shown in picture.
No returns, no exchanges.


Opaque solid color periwinkle color of fine cotisso glass. 100% Italian glass coe 104. Perfect for mosaic artists wanting more 3D and texture in their art. Easily cut with a hammer and hardie. Thinner pieces can be cut with nippers. 7 oz shown in picture.
No returns, no exchanges.


Opaque aqua with black striations colored fine cotisso glass. 100% Italian glass coe 104. Perfect for mosaic artists wanting more 3D and texture in their art. Easily cut with a hammer and hardie. Thinner pieces can be cut with nippers. 9 oz shown in picture.
No returns, no exchanges.

Cotisso Opaque Turquoise Cotisso Transparent Amethyst Cotisso Opaque Dark Purple
Cotisso Opaque Turquoise Cotisso Transparent Amethyst Cotisso Opaque Dark Purple

Opaque turquoise blue color of fine cotisso glass. 100% Italian glass coe 104. Perfect for mosaic artists wanting more 3D and texture in their art. Easily cut with a hammer and hardie. Thinner pieces can be cut with nippers. 9 oz shown in picture.
No returns, no exchanges.


Transparent amethyst color fine cotisso glass. 100% Italian glass coe 104. Perfect for mosaic artists wanting more 3D and texture in their art. Easily cut with a hammer and hardie. Thinner pieces can be cut with nippers. 8 oz shown in picture.
No returns, no exchanges.


Solid opaque purple color fine cotisso glass. 100% Italian glass coe 104. Perfect for mosaic artists wanting more 3D and texture in their art. Easily cut with a hammer and hardie. Thinner pieces can be cut with nippers. 8 oz shown in picture.
No returns, no exchanges.