PROBLEM TO BE SOLVED: To provide an aggregate block and a block structure for planting that cause no trouble of fly soil, have reduced weight and high construction workability with load on the structure reduced and can realize natural resource saving by recycle and with low costs. SOLUTION: The objective aggregate block is produced by forming and solidifying inorganic granules as an aggregate which are light-weight and have continuous and/or closed voids inside and 0.21-1.6 specific gravity and >=95 wt.% of the inorganic granules have 1.7-19 mm particle sizes. Consequently, the block has continuous voids formed in the spaces between the aggregates. The objective block structure characteristically uses the aggregate block as a plate supporter.
