Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Tephroite Manganophyllite & Manganoan Vesuvianite

Views:
Watches:
RHT724023

Tephroite Manganophyllite & Manganoan Vesuvianite

Classic Locality

Description Tabs

Description
Locality: 
Harstigen Mine, Pajsberg, Persberg, Filipstad, Värmland County, Sweden
Class: 
Combination
Size Range: 
Small cabinet (7-10 cm)
Size: 
8 × 5.9 × 4 cm
Weight: 
293.00gr
Description

Combination of gray, massy tephroite, brown to dark brown manganoan vesuvianite crystals and brown fickle manganophyllite (first recorded locality of this 'biotite'-variety).

Mineral Data
What's on the rock

Tephroite

Formula: 
Mn2+2SiO4
Strunz: 
9.AC.05
Crystal System: 
Orthorhombic Forms short prismatic crystals.
Hardness: 
6.0
Streak: 
Pale gray
Type Locality: 
Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA

Manganophyllite

Variety Of: 

Biotite

Formula: 
K(Mn,Mg,Al)2-3(Al,Si)4O10(OH)2
Crystal System: 
Hexagonal
Hardness: 
0.0

Manganoan Vesuvianite

Variety Of: 

Vesuvianite

Formula: 
(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
Strunz: 
9.BG.35
Hardness: 
6.5
Hardness: 
0.0
Item Toolbox