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Datolite Prehnite & Hancockite

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BCK677311

Datolite Prehnite & Hancockite

George Elling collection
Classic Locality

Description Tabs

Description
Locality: 
Franklin, Sussex County, New Jersey, United States of America
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.6 × 2.1 × 1.9 cm
Description

You are bidding on a small vuggy sample with unusual pink clusters of datolite crystals with unusual white tabular prehnite crystals and small red hancockite prisms. The datolite and prehnite were confirmed by PXRD analysis. Rich!

Mineral Data
What's on the rock

Datolite

Formula: 
Ca(HBSiO5)
Strunz: 
9.AJ.20
Hardness: 
5.0 - 5.5
Streak: 
White
Type Locality: 
Nødebro Mine (Nøddebro), Arendal Iron Mines, Arendal, Aust-Agder, Norway

Prehnite

Formula: 
Ca2Al2Si3O10(OH)2
Strunz: 
9.DP.20
Hardness: 
6.0 - 6.5
Streak: 
White
Type Locality: 
Karoo dolerites, Cradock, Chris Hani District, Eastern Cape Province, South Africa

Hancockite

Variety Of: 

Epidote-(Pb)

Formula: 
{CaPb}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Strunz: 
9.BG.05
Hardness: 
6.0 - 7.0
Formula: 
{CaPb}{Al2(Fe3+,Mn3+)}(Si2O7)(SiO4)O(OH)
Hardness: 
6.0 - 7.0
Streak: 
White
Type Locality: 
Parker Mine (Parker shaft), Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA

Seller Information

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