>Egyptian blue, also known as calcium copper silicate
Otherwise known as “turquoise” mined for thousands of years on Mount Sinai where it was processed as a secret geopolymer ingredient for making stone, such as basalt and limestone.
>Egyptian blue, also known as calcium copper silicate
Otherwise known as “turquoise” mined for thousands of years on Mount Sinai where it was processed as a secret geopolymer ingredient for making stone, such as basalt and limestone.