Gerasimovskite

Overview

(Mn,Ca)(Nb,Ti)5O12·9(H2O)
Fluorescence: none	Not Radioactive	Magnetic: no

Description

Physical Properties

Property	Value
Density	2.52-2.58 g/cc
Hardness - Mohs	Gerasimovskite - 2  10 Diamond 9 Carborundum 8 Topaz 7 Quartz 6 Orthoclase 5 Apatite 4 Fluorite 3 Calcite 2 Gypsum 1 Talc
Color	brown, gray
Streak	gray

Crystal Properties

Property	Value
Crystal structure	amorphous - amorphous
Cleavage	perfect
Tenacity	-
Fracture	-
Luster	pearly

Similar Minerals

Dana Number : 08.07.08.03

Class: 08

Group: 08.07

Subgroup: 08.07.08 - belyankinite

Dana Number	Mineral Name	Formula
08.07.08.03	gerasimovskite	(Mn,Ca)(Nb,Ti)5O12·9(H2O)

Nickel-Strunz Number : 04.FM.25

Group : 04

Subgroup : FM

Nickel-Strunz Number	Mineral Name	Formula
04.FM.25	gerasimovskite	(Mn,Ca)(Nb,Ti)5O12·9(H2O)

Specimens

Localities

Uses