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Titantaramellite Gillespite & Sanbornite

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PJM121570

Titantaramellite Gillespite & Sanbornite

Type Locality

Description Tabs

Description
Locality: 
Madrelena Mine, Tres Pozos, Baja California, Mexico
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.3 × 3.9 × 3.5 cm
Description

Dark brown titantaramellite are mixed withthin platy veins of lustrous and translucent, rich strawberry-colored gillespite are emplaced in beautifully color contrasting white sugary sanbornite. Gillespite is a rare barium, iron silicate and sanbornite is an uncommon barium silicate. This is the type locality for the species titantaramellite also a rare barium silicate

Mineral Data
What's on the rock

Titantaramellite

Formula: 
Ba4(Ti,Fe3+,Fe2+,Mg)4(B2Si8O27)O2Clx
Strunz: 
9.CE.20
Hardness: 
0.0
Colour: 
Brown
Type Locality: 
Trumbull Peak Ba-silicate deposit, Trumbull Peak, Clearing House, Clearing House District, East Belt, Mariposa Co., California, USA

Gillespite

Formula: 
BaFe2+[Si4O10]
Strunz: 
9.EA.05
Hardness: 
4.0
Type Locality: 
Dry Delta, Alaska Range, Yukon-Koyukuk Borough, Alaska, USA

Sanbornite

Formula: 
Ba2(Si4O10)
Strunz: 
9.EF.10
Hardness: 
5.0
Type Locality: 
Trumbull Peak Ba-silicate deposit, Trumbull Peak, Clearing House, Clearing House District, East Belt, Mariposa Co., California, USA
Earthstones Australia

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