Manganoneptunite

Overview

Na2KLiMn+22Ti2Si8O24
Fluorescence: none	Barely Detectable Radiation	Magnetic: no

Description

Physical Properties

Property	Value
Density	3.23 g/cc
Hardness - Mohs	Manganoneptunite - 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	red, orange, black
Streak	reddish white

Crystal Properties

Property	Value
Crystal structure	monoclinic - prismatic
Cleavage	-
Tenacity	brittle
Fracture	uneven
Luster	vitreous, glassy

Similar Minerals

Dana Number : 70.04.01.02

Class: 70

Group: 70.04

Subgroup: 70.04.01 - neptunite

Dana Number	Mineral Name	Formula
70.04.01.01	neptunite	KNa2Li(Fe+2,Mn)2Ti2Si8O24
70.04.01.02	manganoneptunite	Na2KLiMn+22Ti2Si8O24

Nickel-Strunz Number : 09.EH.05

Group : 09

Subgroup : EH

Nickel-Strunz Number	Mineral Name	Formula
09.EH.05	manganoneptunite	Na2KLiMn+22Ti2Si8O24
09.EH.05	neptunite	KNa2Li(Fe+2,Mn)2Ti2Si8O24

Specimens

Localities

Uses