ML015 Garnet


鈣鋁石榴石  
Name   Garnet

 
化學公式
Ca3Al2Si3O12  
Chemical Formula   Ca3Al2Si3O12
莫氏硬度
7.25  
Mohs scale of Hardness
7.25  
鈣鋁榴石是鈣榴石類最常見的一種石榴石,顏色多種多樣,主要有綠色、黃綠色、黃色、褐紅色及乳白色等。  鈣鋁榴石的顏色是從無色至黑色的,根據其元素含量不同而顏色不同。其英文名稱源自首先被發現、呈獨特醋栗色的鈣鋁榴石。呈棕色是由錳和鐵內含物引起的。

 
Description Wallaceous garnet is the most common type of garnet in the class of garnets. It has a variety of colors, mainly green, yellow-green, yellow, brown-red, and milky white. The color of garnet is from colorless to black, and the color varies according to its element content. Its English name is derived from the first discovered and unique gooseberry color garnet. The brown color is caused by manganese and iron inclusions.


小挑戰   我們在哪裡可以找到這石頭?   加拿大,肯尼亞,馬里,巴基斯坦,俄國,南非,斯里蘭卡,坦桑尼亞,美國  Challenge   Where can we find this stone?   Canada, Kenya, Mali, Pakistan, Russia, South Africa, Sri Lanka, Tanzania, United States

Reference

 https://garnet123.wordpress.com/2017/02/20/%E9%88%A3%E9%8B%81%E7%9F%B3%E6%A6%B4%E7%9F%B3almandine/

by Ho Yat Nga on 18 April 2021