Switch currency

Esperite & Willemite

Views:
Watches:
MEX68156

Description Tabs

Description
Locality: 
Franklin Mine, Franklin, Sussex County, New Jersey, United States of America
Size Range: 
Thumbnail (1-3cm)
Size: 
1.2 × 0.7 × 0.1 cm
Description

A thumbnail with rare esperite (yellow) and willemite (green). The second picture shows this colours under shortwave uv-light.

Mineral Data
What's on the rock

Esperite

Formula: 
PbCa2Zn3(SiO4)3
Strunz: 
9.AB.15
Hardness: 
5.0
Streak: 
White.
Type Locality: 
Parker Mine (Parker shaft), Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA

Willemite

Formula: 
Zn2SiO4
Strunz: 
9.AA.05
Hardness: 
5.5
Streak: 
White
Type Locality: 
Vieille Montagne (Altenberg; Kelmisberg), Moresnet, Kelmis, Plombières-Vieille Montagne District (Plombières-Altenberg), Verviers, Liège Province, Belgium