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Hydroxyapophyllite-(K)

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PAV910782

Hydroxyapophyllite-(K)

New Discovery

Description Tabs

Description
Locality: 
Terra do Baptista, Porto da Cruz, Machico, Madeira Islands, Portugal
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
2.7 × 2 × 1.8 cm
Description

Group of well formed hydroxyapophillite-(K) crystals.

First and only locality in Portugal. Very very rare at the locality!

Collected: 
2021
Boxed with Label
Mineral Data
What's on the rock

Hydroxyapophyllite-(K)

Formula: 
KCa4(Si8O20)(OH,F)·8H2O
Strunz: 
9.EA.15
Hardness: 
4.0 - 5.0
Type Locality: 
Ore Knob Mine, Ore Knob, Ashe Co., North Carolina, USA