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


Special Purchase - "Cotisso" Glass from Venice, Italy
20 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 Cotisso Assorted Neutrals Cotisso Assorted Greens
Temp out - new shipment arriving in July!
1 pound assortment of Cotisso hot colors (Opaques-Cherry Red, Yellow, Orange). 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 neutral colors (sand, grey, black, white, lavender). 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 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

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 Transparent Red Cotisso Opaque Cherry 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.


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.

TEMP OUT - new shipment arriving soon.
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.

Cotisso Opaque Orange Cotisso Opaque Yellow Cotisso Opaque Lime

Opaque 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.

TEMP OUT - new shipment arriving soon.
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.


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 Transparent Emerald Cotisso Transparent Aquamarine

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.


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.


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.

Cotisso Transparent Cobalt Cotisso Transparent Blue Cotisso Opaque Periwinkle

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 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. 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. 7 oz shown in picture.
No returns, no exchanges.

Cotisso Opaque Turquoise Cotisso Transparent Amethyst Cotisso Opaque Lavender
TEMP OUT - new shipment arriving soon.
Opaque turquoise 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.


Transparent amethyst color periwinkle 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. 8 oz shown in picture.
No returns, no exchanges.


Opaque solid color lavender 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. 11 oz shown in picture.
No returns, no exchanges.