| Class: | 5e |
| Name: | Justin li |
| Year: | 2017 – 2018 |
| 地質年代：碳酸鈣
CaCO3 |
Geological Age:
Calcium carbonate CaCO3 |
| 形成：礦物
原生物：carbonate minerals
|
Formation: mineral
Living Specimens: 碳酸盐
|
| 特性：結構疏鬆而多孔隙
|
Properties:
With loose and porous structure
|
| 用途：
地板
|
Application:
Can be used for building floor
|
| 分佈：
奧地利，法國，意大利，美國
|
Distribution: Austria , France , Italy , USA
|
| 知多一點點：通常包含葉子，樹枝的碎片 | More to learn: it often contains fragments of leaves, twigs |