Gyrolite

Overview

NaCa16Si23AlO60(OH)8·64(H2O)
Fluorescence: white under SW and LW	Not Radioactive	Magnetic: no

Description

Physical Properties

Property	Value
Density	2.45-2.51 g/cc
Hardness - Mohs	Gyrolite - 2.5  10 Diamond 9 Carborundum 8 Topaz 7 Quartz 6 Orthoclase 5 Apatite 4 Fluorite 3 Calcite 2 Gypsum 1 Talc
Color	brown, colorless, yellow, white, green
Streak	white

Crystal Properties

Property	Value
Crystal structure	hexagonal - pyramidal
Cleavage	perfect
Tenacity	brittle
Fracture	uneven
Luster	vitreous, glassy

Similar Minerals

Dana Number : 73.02.02c.01

Class: 73

Group: 73.02

Subgroup: 73.02.02c - reyerite

Dana Number	Mineral Name	Formula
73.02.02c.01	gyrolite	NaCa16Si23AlO60(OH)8·64(H2O)

Nickel-Strunz Number : 09.EE.30

Group : 09

Subgroup : EE

Nickel-Strunz Number	Mineral Name	Formula
09.EE.30	gyrolite	NaCa16Si23AlO60(OH)8·64(H2O)
09.EE.30	tungusite	Ca14Fe+29(Si8O20)3(OH)22

Specimens

Localities

Uses