名稱   方解石	Name   Calcite
化學公式 CaCO3	Chemical Formula CaCO3
莫氏硬度 3	Mohs scale of Hardness 3
描述 它具有完美的菱面體切割。它的顏色通常是白色，但也可以是無色，灰色，紅色，綠色，藍色，黃色，棕色，橙色。條紋為白色，並且具有玻璃光澤。	Description It has a perfect, rhombohedral cleavage. Its colours are usually white but also colorless, gray, red, green, blue, yellow, brown, orange. The streak is white, and it has a vitreous luster.
小挑戰 它用作建築材料，磨料，農業土壤處理，建築骨料，顏料，製藥等。	Challenge What is calcite used for? It is used as a construction material, abrasive, agricultural soil treatment, construction aggregate, pigment, pharmaceutical and more.

Reference

1. https://www.youtube.com/watch?v=_-UpR5Fix54

2. https://geology.com/minerals/calcite.shtml#:~:text=Calcite%20is%20a%20rock%2Dforming,constituent%20of%20limestone%20and%20marble.

By 4A06 Chow Pui Ching 06 on 18/4/2021