Terskite

Overview

Na4ZrSi6O15(OH)2·2(H2O)
Fluorescence: bright green or yellow white under SW and LW	Not Radioactive	Magnetic: no

Description

Physical Properties

Property	Value
Density	2.71 g/cc
Hardness - Mohs	Terskite - 5  10 Diamond 9 Carborundum 8 Topaz 7 Quartz 6 Orthoclase 5 Apatite 4 Fluorite 3 Calcite 2 Gypsum 1 Talc
Color	white, light purple
Streak	white

Crystal Properties

Property	Value
Crystal structure	orthorhombic - pyramidal
Cleavage	-
Tenacity	-
Fracture	-
Luster	vitreous, glassy

Similar Minerals

Dana Number : 78.07.15.01

Class: 78

Group: 78.07

Subgroup: 78.07.15 - terskite

Dana Number	Mineral Name	Formula
78.07.15.01	terskite	Na4ZrSi6O15(OH)2·2(H2O)

Nickel-Strunz Number : 09.DM.40

Group : 09

Subgroup : DM

Nickel-Strunz Number	Mineral Name	Formula
09.DM.40	terskite	Na4ZrSi6O15(OH)2·2(H2O)

Specimens

Localities

Uses