Are borosilicate glass and effetre/moretti glass related?

If eyeglasses are not good for borosilicate glass can it be used for lampworking that uses effetre/moretti glass?

No. Borosilicate glass is harder and has a higher melting temp than moretti, which is a softer glass. They have two different COEs (coefficients of expansion) so the two types of glass do not work together; if you try to use them together your pieces will shatter.

Devardi Opaque Olive Mixed with Moretti Red, Glass Lampwork

asimmetrico flute glass by carlo moretti h. 8.3″/ ∅ 2.1″…

asimmetrico liqueur glass by carlo moretti h. 5.2″/ ∅ 1.8″…

asimmetrico water glass by carlo moretti h. 6.8″/ ∅ 2.4″…

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Glassmen of Murano Born of Fire $62.28 THE GLASSMEN OF MURANO “BORN OF FIRE” by Author, Yvonne M. Moretti, is a riveting   – never before told – in depth thought-provoking perception by the Writer touching upon the evolution of glass from its most prehistoric of form — naturally occurring “volcanic glass”; humanity discovering the diversified utilitarian use of glass over the ages; and how two noted and world renown Muranese…

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