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Katayamalite & Sugilite

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SMM708858

Katayamalite & Sugilite

Type Locality
Rare Mineral

Description Tabs

Description
Locality: 
Iwagi Island, Setonaikai, Ehime Prefecture, Japan
Class: 
Massive/Crystalline
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 2.5 × 2 cm
Description

Rare mineral found in only two locality worldwide. In this sample show it self as glassy, colorless crystals in more point of the matrix, appear blue under the UV ligth (blu arrow). There are also greenish crystalline patch of sugilite, (green arrows). Interesting rare sample.

 

Boxed with Label
Mineral Data
What's on the rock

Katayamalite

Formula: 
KLi3Ca7Ti2(SiO3)12(OH)2
Strunz: 
9.CJ.25
Hardness: 
0.0
Type Locality: 
Iwagi Island, Inland Sea (Setonaikai), Ehime Prefecture, Japan

Sugilite

Formula: 
K(Na,□)2Li3(Fe,Mn,Al,Zr)2[Si12O30]
Strunz: 
9.CM.05
Crystal System: 
Hexagonal
Hardness: 
6.0 - 6.5
Type Locality: 
Iwagi Island, Inland Sea (Setonaikai), Ehime Prefecture, Japan

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