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Franzinite & Grossular & Vesuvianite

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SHS92723

Franzinite & Grossular & Vesuvianite

Description Tabs

Description
Locality: 
Pitigliano, Grosseto Province, Tuscany, Italy
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.9 × 5.3 × 3.5 cm
Description

Franzinite and grossular and vesuvianite in matrix

Mineral Data
What's on the rock

Franzinite

Formula: 
(Na,K)6Ca2(Al6Si6O24)(SO4)2·0.5H2O
Strunz: 
9.FB.05
Hardness: 
5.0
Streak: 
White
Type Locality: 
Case Collina (Toscopomici quarry), Pitigliano, Grosseto Province, Tuscany, Italy

Grossular

Formula: 
Ca3Al2(SiO4)3
Strunz: 
9.AD.25
Hardness: 
6.5 - 7.0
Type Locality: 
Akhtaragda River mouth (Achtaragda River mouth), Vilyui River Basin (Vilui River Basin; Wilui River Basin), Sakha Republic (Saha Republic; Yakutia), Eastern-Siberian Region, Russia

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
Streak: 
White
Type Locality: 
Monte Somma, Somma-Vesuvius Complex, Naples Province, Campania, Italy