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Ankerite & Quartz

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ESM587804

Ankerite & Quartz

Description Tabs

Description
Locality: 
Spruce Ridge, King County, Washington, United States of America
Class: 
Crystal Group/Cluster
Size Range: 
Small cabinet (7-10 cm)
Size: 
2.2 × 7 × 2.3 cm
Description

A cluster of brown ankerite crystals with pyrite crystals on a clear doubly terminated quartz crystal

Mineral Data
What's on the rock

Ankerite

Formula: 
Ca(Fe2+,Mg)(CO3)2
Strunz: 
5.AB.10
Crystal System: 
Trigonal
Hardness: 
3.5 - 4.0
Streak: 
White
Type Locality: 
Styrian Erzberg, Eisenerz, Styria, Austria

Quartz

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