Orange-brown crystals of the very rare mineral jianshajingite from the type locality: Luku Mine, Panzhihua, Sichuan Province, China (Peoples Republic). Ex.Dr.Hartel and C.Rewitzer collections. — Photo: David Hospital · CC BY-SA 4.0
Jinshajiangite
A rare barium-sodium-iron-titanium sorosilicate named for China's Jinshajiang river.
Intro adapted from Wikipedia (CC BY-SA).
Jinshajiangite is an IMA-recognized mineral species in the silicate class, with the chemical formula BaNaFe²⁺₄Ti₂(Si₂O₇)₂O₂(OH)₂F.
It crystallizes in the monoclinic crystal system (space group P2/m). It is a member of the Seidozerite-Bafertisite structural group.
Key properties: specific gravity 3.61; Light yellow streak; Vitreous luster; optically biaxial.
IMA symbol Jsh, IMA status: approved, named in 1981.
Found in an arfvedsonite dike in alkalic syenites.
It is found associated with Albite, arfvedsonite, aegirine, pyrochlore, monazite, chevkinite.
The name refers to the Jinshajiang River, China.