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Kësterite & Mushistonite On Goshenite & Quartz

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PJM138444

Kësterite & Mushistonite On Goshenite & Quartz

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Description Tabs

Description
Locality: 
Mount Xuebaoding, Pingwu County, Mianyang, Sichuan Province, China (Peoples Republic)
Size Range: 
Small cabinet (7-10 cm)
Size: 
9.7 × 5.1 × 3 cm
Description

This is a fine specimen where the kesterite is coated with elegant green mushistonite. The underlain kesterite is actually a black metallic color, and is totally enveloped by the layer of mushistonite and rest on a plate of large bladed beryl variety goshenite crystals with quartz and muscovite crystals. The base of this specimen has been sawn to greatly reduced the weight of this specimen

Mineral Data
What's on the rock

Kësterite

Formula: 
Cu2(Zn,Fe)SnS4
Strunz: 
2.CB.15a
Hardness: 
4.5
Streak: 
Black
Type Locality: 
Këster Deposit (Kester Deposit), Arga-Ynnakh-Khaya granite Massif, Yana-Adycha Region, Yana River Basin, Verkhoyansk, Sakha Republic (Saha Republic; Yakutia), Eastern-Siberian Region, Russia

Mushistonite

Formula: 
(Cu,Zn,Fe2+)[Sn(OH)6]
Strunz: 
4.FC.10
Hardness: 
4.0 - 4.5
Type Locality: 
Mushiston Deposit, Kaznok Valley, Pendzhikent (Penjikent; Panjakent), Zeravshan Range, Viloyati Sogd (Viloyati Sughd; Viloyati Khodzhent; Viloyati Leninabad), Tajikistan

Goshenite

Variety Of: 

Beryl

Formula: 
Be3Al2(Si6O18)
Strunz: 
9.CJ.05
Hardness: 
7.5 - 8.0
Hardness: 
0.0

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White
Earthstones Australia

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