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Bixbyite & Piemontite

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JYJ715747

Bixbyite & Piemontite

Description Tabs

Description
Locality: 
Ultevis, Jokkmokk, Norrbotten County, Sweden
Class: 
Massive/Crystalline
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 5.7 × 3.3 cm
Description

Massive grey metallic bixbyite with piemontite from Sweden. Label dates to 1976.

From an old collection with focus on Scandinavian minerals.

 

Mineral Data
What's on the rock

Bixbyite

Formula: 
Mn3+2O3
Strunz: 
4.CB.10
Hardness: 
6.0 - 6.5
Colour: 
Black
Streak: 
Black
Type Locality: 
Maynard's claim (Pismire Knolls), Thomas Range, Juab Co., Utah, USA...

Piemontite

Formula: 
{Ca2}{Al2Mn3+}(Si2O7)(SiO4)O(OH)
Strunz: 
9.BG.05
Hardness: 
6.0 - 6.5
Streak: 
Reddish
Type Locality: 
Prabornaz Mine (Praborna Mine), Saint-Marcel, Aosta Valley, Italy
Labels
Label Images - only: Bixbyite & Piemontite