Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Harmotome Fluorapophyllite & Pyrite

Views:
Watches:
MGR153716

Harmotome Fluorapophyllite & Pyrite

Description Tabs

Description
Locality: 
Korsnäs Mine, Korsnäs, Ostrobothnia, Finland
Class: 
Combination
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.4 × 6.6 × 3.9 cm
Description

To be exactly about the locality: Korsnäs, Western and Inner Finland Reg., Finland. A very rare cabinet combination specimen from an uncommon locality - Korsnas, Finland. Gemmy, greenish-yellow apophyllite crystals are richly concentrated or are scattered amongst sharp, pearlescent, grayish-white harmotome crystals. The harmotome crystals reach 8 mm across. Also yellow apophyllite is rare, worldwide. Minor pyrite is also present.

Mineral Data
What's on the rock

Harmotome

Formula: 
(Ba0.5,Ca0.5,K,Na)5[Al5Si11O32] ·12H2O
Strunz: 
9.GC.10
Crystal System: 
Monoclinic
Hardness: 
4.0 - 5.0
Streak: 
White
Type Locality: 
St Andreasberg, St Andreasberg District, Harz, Lower Saxony, Germany

Fluorapophyllite

Synonym Of: 

Fluorapophyllite-(K)

Formula: 
KCa4(Si8O20)(F,OH)·8H2O
Strunz: 
9.EA.15
Hardness: 
4.5 - 5.0

Fluorapophyllite-(Na)

Formula: 
NaCa4(Si8O20)F·8H2O
Strunz: 
9.EA.15
Hardness: 
4.0 - 5.0

Pyrite

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