Nenadkevichite

Overview

(Na,Ca,K)(Nb,Ti)Si2O6(O,OH)·2(H2O)
Fluorescence: none	Barely Detectable Radiation	Magnetic: no

Description

Physical Properties

Property	Value
Density	2.838-2.885 g/cc
Hardness - Mohs	Nenadkevichite - 5  10 Diamond 9 Carborundum 8 Topaz 7 Quartz 6 Orthoclase 5 Apatite 4 Fluorite 3 Calcite 2 Gypsum 1 Talc
Color	brown, red, yellow
Streak	light pink

Crystal Properties

Property	Value
Crystal structure	orthorhombic - dipyramidal
Cleavage	indistinct
Tenacity	brittle
Fracture	uneven
Luster	earthy

Similar Minerals

Dana Number : 60.01.03a.01

Class: 60

Group: 60.01

Subgroup: 60.01.03a - labuntsovite

Dana Number	Mineral Name	Formula
60.01.03a.01	nenadkevichite	(Na,Ca,K)(Nb,Ti)Si2O6(O,OH)·2(H2O)
60.01.03a.02	korobitsynite	Na3(Ti,Nb)2[Si4O12](OH,O)2·3-4(H2O)

Nickel-Strunz Number : 09.CE.30a

Group : 09

Subgroup : CE

Nickel-Strunz Number	Mineral Name	Formula
09.CE.30a	korobitsynite	Na3(Ti,Nb)2[Si4O12](OH,O)2·3-4(H2O)
09.CE.30a	nenadkevichite	(Na,Ca,K)(Nb,Ti)Si2O6(O,OH)·2(H2O)

Specimens

Localities

Uses