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Wiluite

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MGR803860

Wiluite

Classic Locality

Description Tabs

Description
Locality: 
Akhtaragda River Mouth, Vilyui River Basin, Sakha Republic, Russian Federation
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
10 × 4.5 × 5 cm
Description

This rare titanium-bearing member of the Vesuvianite group is only found in a few worldwide localities, and the most desirable specimens are those from the type locality in Russia. This specimen features a pair predominant, good quality, sharp, euhedral dark blackish-green color prismatic tetragonal crystal (18mm across) aesthetically sitting on serpentine matrix.

Mineral Data
What's on the rock

Wiluite

Formula: 
Ca19(Al,Mg)13(B,☐,Al)5(Si2O7)4(SiO4)10(O,OH)10
Strunz: 
9.BG.35
Crystal System: 
Tetragonal
Hardness: 
6.0
Type Locality: 
Vilyui River Basin (Vilui River Basin; Wilui River Basin), Sakha Republic (Saha Republic; Yakutia), Eastern-Siberian Region, Russia