According to the Babylonian Talmud (Keritot 6A), the tabernacle blend was made with 70 maneh (handfuls) of Shekheleth and:
"Kersannah lye" was spelled בּוֹרִית כַּרְשִׁינָה (like "Burit Krshinh").
Borit means literally cleanser, referring to soap or lye.
70 maneh would be 438g according to...