Lomonosovite

Overview

Na5Ti2O2(Si2O7)(PO4)
Fluorescence: none	Not Radioactive	Magnetic: no

Description

Physical Properties

Property	Value
Density	3.12-3.15 g/cc
Hardness - Mohs	Lomonosovite - 3.0-4.0  10 Diamond 9 Carborundum 8 Topaz 7 Quartz 6 Orthoclase 5 Apatite 4 Fluorite 3 Calcite 2 Gypsum 1 Talc
Color	brown, purple, black
Streak	brown

Crystal Properties

Property	Value
Crystal structure	triclinic - pinacoidal
Cleavage	perfect
Tenacity	brittle
Fracture	uneven
Luster	vitreous, adamantine

Similar Minerals

Dana Number : 56.04.01.01

Class: 56

Group: 56.04

Subgroup: 56.04.01 - lomonosovite

Dana Number	Mineral Name	Formula
56.04.01.01	lomonosovite	Na5Ti2O2(Si2O7)(PO4)

Nickel-Strunz Number : 09.BE.32

Group : 09

Subgroup : BE

Nickel-Strunz Number	Mineral Name	Formula
09.BE.32	lomonosovite	Na5Ti2O2(Si2O7)(PO4)

Specimens

Localities

Uses