Aeschynite-(Y)

Overview

(Y,Ca,Fe)(Ti,Nb)2(O,OH)6
Fluorescence: none	Not Radioactive	Magnetic: no

Description

Physical Properties

Property	Value
Density	4.85-5.13 g/cc
Hardness - Mohs	Aeschynite-(Y) - 5.0-6.0  10 Diamond 9 Carborundum 8 Topaz 7 Quartz 6 Orthoclase 5 Apatite 4 Fluorite 3 Calcite 2 Gypsum 1 Talc
Color	brown, black, yellow
Streak	reddish yellow

Crystal Properties

Property	Value
Crystal structure	orthorhombic - dipyramidal
Cleavage	none
Tenacity	-
Fracture	brittle
Luster	adamantine

Similar Minerals

Dana Number : 08.03.06.03

Class: 08

Group: 08.03

Subgroup: 08.03.06 - aeschynite

Dana Number	Mineral Name	Formula
08.03.06.03	aeschynite-(Y)	(Y,Ca,Fe)(Ti,Nb)2(O,OH)6
08.03.06.05	aeschynite-(Nd)	(Nd,Ce)(Ti,Nb)2(O,OH)6

Nickel-Strunz Number : 04.DF.05

Group : 04

Subgroup : DF

Nickel-Strunz Number	Mineral Name	Formula
04.DF.05	aeschynite-(Nd)	(Nd,Ce)(Ti,Nb)2(O,OH)6
04.DF.05	aeschynite-(Y)	(Y,Ca,Fe)(Ti,Nb)2(O,OH)6
04.DF.05	vigezzite	(Ca,Ce)(Nb,Ta,Ti)2O6

Specimens

Localities

Uses