Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Fluorapophyllite On Prehnite

Views:
Watches:
SHS26326

Fluorapophyllite On Prehnite

ex John R. Ydren Collection (California/USA)

Description Tabs

Description
Locality: 
Centreville, Fairfax County, Virginia, Virginia, United States of America
Size Range: 
Thumbnail (1-3cm)
Size: 
2.8 × 2.7 × 2 cm
Largest Crystal: 
1.70cm
Description

Apophyllite crystals on phrenite

Mineral Data
What's on the rock

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

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
Item Toolbox