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Heulandite-Ba Fluorite Quartz Pyrite & Calcite

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PCZ646968

Heulandite-Ba Fluorite Quartz Pyrite & Calcite

Type Locality

Description Tabs

Description
Locality: 
Northern Ravnås Prospect, Vinoren, Kongsberg, Svene, Flesberg, Viken, Norway
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.5 × 3 × 2.2 cm
Description

Well formed, translucent crystal up to 1.0 cm across in association with reflective crystals of fluorite, quartz, pyrite and calcite. The type locality for heulandite-Ba.

(L)

Mineral Data
What's on the rock

Heulandite-Ba

Formula: 
(Ba,Ca,K,Na,Sr)5Al9Si27O72·22H2O
Strunz: 
9.GE.05
Hardness: 
3.5
Streak: 
White
Type Locality: 
Northern Ravnås Prospect, Vinoren Southern Mines, Vinoren Silver Mine Field, Kongsberg Silver Mining District, Svene, Flesberg, Buskerud, Norway

Fluorite

Formula: 
CaF2
Strunz: 
3.AB.25
Crystal System: 
Isometric
Hardness: 
4.0
Streak: 
White
Type Locality: 
Jáchymov (St Joachimsthal), Jáchymov District (St Joachimsthal), Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White

Pyrite

Formula: 
FeS2
Strunz: 
2.EB.05a
Crystal System: 
Isometric
Hardness: 
6.0 - 6.5

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White
Peter Crozier Minerals