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Svanbergite & Magnesite & Uvite

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SKY1070492

Description Tabs

Description
Locality: 
Brumado, Bahia, Brazil
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
1.5 × 1.5 × 1 cm
Description

Outstanding crystal group of svanbergite (orange), magnesite (white) and uvite (green) from Brumado, Brasil.

Ex Vandenbroucke Museum collection from Waregem, Belgium.

Mineral Data
What's on the rock

Svanbergite

Formula: 
SrAl3(PO4)(SO4)(OH)6
Strunz: 
8.BL.05
Crystal System: 
Trigonal
Hardness: 
5.0
Streak: 
white
Type Locality: 
Hålsjöberg (Horrsjöberg), Torsby, Värmland, Sweden

Magnesite

Formula: 
MgCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.5 - 4.5
Streak: 
White
Type Locality: 
Magnisía Prefecture (Magnesia), Thessalia Department (Thessaly), Greece

Uvite

Formula: 
Ca(Mg3)MgAl5(Si6O18)(BO3)3(OH)3(F/OH)
Group Parent: 
Tourmaline
Crystal System: 
Trigonal
Hardness: 
7.5
Colour: 
Black, greenish-black
Streak: 
Light-brown, light-green, or white

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Postage Area Price
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€6
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€9
Rest of the World
€10
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NOTES:

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-All items are completely described and photographed, so I DON'T ACCEPT RETURNS.

-All questions/doubts referring to the IDENTIFICATIONS and ANALYSIS of the specimens must be made BEFORE the auction finishes.

-If a specimen is analyzed, I always upload the analysis in the corresponding section of the description, so if there is no analysis uploaded, that means that the specimen is not analyzed or that the analysis is not available for any reason. In these last two cases, if the buyer of the specimen analyze it, and finally the result of the analysis doesn't match with the label, I will give back the money paid to the buyer, after receiving back the specimen; all this in a maximum of SIX MONTHS after the purchase date. After this deadline of 6 months I will not accept any claim in the purchased specimens.

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