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Jecha rakatenderera
Round quartz jecha rinogadzirwa neakasikwa quartz nekukuya.Iyo ine yakakwira Mohs kuomarara, mativi akatenderera asina anopinza kona uye flake particles, yakakwirira kuchena isina tsvina, yakakwirira silicon yemukati uye yakakwirira kupisa moto.
