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单词 Piemontite
释义

Piemontite

英语例句库

Mineralogically, zoisite is a member of the epidote group, the other members of which are clinozoisite, epidote pe rse, piemontite, and allanite.

从矿物学上讲,黝帘石是绿帘石家族的一员,绿帘石还有褐帘石等。

英语百科

Piemontite

Piemontite on Quartz, from No. 5 shaft, Messina mine,  Limpopo Province, South Africa. Red piemontite microcrystals cover three sides of a doubly terminated quartz crystal. Size: 7.1 x 3.0 x 2.6 cm.

Piemontite is a sorosilicate mineral in the monoclinic crystal system with the chemical formula Ca2(Al,Mn,Fe)3(SiO4)(Si2O7)O(OH). It is a member of the epidote group.

Red to reddish-brown or red-black in colour, Piemontite has a red streak and a vitreous lustre.

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更新时间:2025/6/19 15:39:51