块

This measure word just must be memorized. For example: sān kuài qián 三块钱.// He made a decisive 夬 decision to throw a lump 块 made out of soil. 土
by Poluo

"土 (earth) and 夬 (decisive) Giỏ đầy cục đồng 块 đất 土, đã chia quyết định 夬 dùng sao"
by lkhalliera