Connoisseur’s Choice: Tsavorite, The Green Gem Variety of Grossular, Merelani Hills, Manyara District, Tanzania

被引:0
|
作者
Cairncross B. [1 ]
机构
[1] Department of Geology, University of Johannesburg, PO Box 524, Auckland Park, Johannesburg
来源
Cairncross, Bruce (brucec@uj.ac.za) | 2020年 / Routledge卷 / 95期
基金
新加坡国家研究基金会;
关键词
(Edited Abstract);
D O I
10.1080/00357529.2020.1716171
中图分类号
学科分类号
摘要
Grossular, Ca3Al2(SiO4)3, was named in 1803 after Ribes grossularia, the botanical name of a gooseberry, because Siberian pale green crystals resemble the fruit of this plant (Galoisy 2013). Crystals are vitreous and translucent to transparent with a Mohs hardness of 6.5-7.0. Their specific gravity varies from 3.4 to 3.6, and their refractive indices are 1.73-1.76 (Stockton and Manson 1985).
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页码:252 / 259
页数:7
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