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Astrophyllite & Zircon

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PAV1065694

Description Tabs

Description
Locality: 
Água de Alto, Vila Franca do Campo, São Miguel Island, Azores District, Portugal
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
2.3 × 2.8 × 2 cm
Description

Lots of pearly zircon crystals with dark brown astrophyllite.

Collected: 
2023
Boxed with Label
Mineral Data
What's on the rock

Astrophyllite

Formula: 
(K,Na)3(Fe,Mn)7Ti2Si8O24(O,OH)7
Strunz: 
9.DC.05
Crystal System: 
Triclinic
Hardness: 
3.0
Streak: 
Golden
Type Locality: 
Låven (Skådön; Lamö; Lamanskjaer), Langesundsfjorden, Larvik, Vestfold, Norway

Zircon

Formula: 
ZrSiO4
Strunz: 
9.AD.30
Crystal System: 
Tetragonal
Hardness: 
7.5
Streak: 
White