Dalyite

Overview

K2ZrSi6O15
Fluorescence: none	Barely Detectable Radiation	Magnetic: no

Description

Physical Properties

Property	Value
Density	2.84 g/cc
Hardness - Mohs	Dalyite - 7.5  10 Diamond 9 Carborundum 8 Topaz 7 Quartz 6 Orthoclase 5 Apatite 4 Fluorite 3 Calcite 2 Gypsum 1 Talc
Color	colorless
Streak	white

Crystal Properties

Property	Value
Crystal structure	triclinic - pinacoidal
Cleavage	good
Tenacity	-
Fracture	brittle
Luster	vitreous, glassy

Similar Minerals

Dana Number : 72.02.01.01

Class: 72

Group: 72.02

Subgroup: 72.02.01 - dalylite

Dana Number	Mineral Name	Formula
72.02.01.01	dalyite	K2ZrSi6O15
72.02.01.04	sazhinite-(La)	Na3La(Si6O15)·2(H2O)

Nickel-Strunz Number : 09.EA.25

Group : 09

Subgroup : EA

Nickel-Strunz Number	Mineral Name	Formula
09.EA.25	dalyite	K2ZrSi6O15

Specimens

Localities

Uses