0000315066-98-000333 SC 13G 1 19980209 NYSE CALMAT CO 0000023533 1400 950645790 DE 1231 SC 13G 34 005-13647 98525952 3200 SAN FERNANDO RD LOS ANGELES CA 90065 2132582777 CONROCK CO 19840712 CONSOLIDATED ROCK PRODUCTS CO 19720915 FMR CORP 0000315066 0000 161144965 MA 1231 SC 13G 82 DEVONSHIRE ST BOSTON MA 02109 6175706339 82 DEVONSHIRE STREET BOSTON MA 02109 SC 13G 1 000031506698000333-001-seq1-sc-13g.txt SCHEDULE 13G -2-14-98 - CALMAT COMPANY