海绵动物们，石质海绵目，Kaliapsidae科，俗称钙海绵。扁平、蘑菇状的海绵，平均大小8CM，一般见于白垩纪晚期，石质;具有许多房室组成的精密，复杂的结构，是各种寻常海绵的特征，骨骼由四射骨针紧密搭接的框架构成。
一种方案建议使用海绵石建造穹顶以减小穹顶自身重量。
One thought the dome should be made of "sponge stone" to keep the weight down.
钠蒙脱石能被冷冻干燥成气凝胶——类似海绵状的物质。
Sodium montmorillonite can be freeze-dried into a spongelike material known as an aerogel. Aerogels are famously fragile.
在加拿大西部，其中很多是在花岗岩的需求，人造石由舒尔茨聘用艺术家发现，海海绵能产生一个很好的花岗岩般的质感。
In western Canada, where granite is much in demand, the faux rock artist employed by Schultz has found that sea sponges can produce a nice granite-like texture.
应用推荐