Fibroferrite

Overview

Fe+3(SO4)(OH)·5(H2O)
Fluorescence: none	Not Radioactive	Magnetic: no

Description

Physical Properties

Property	Value
Density	1.9 g/cc
Hardness - Mohs	Fibroferrite - 2  10 Diamond 9 Carborundum 8 Topaz 7 Quartz 6 Orthoclase 5 Apatite 4 Fluorite 3 Calcite 2 Gypsum 1 Talc
Color	gray, green, white, yellow
Streak	white

Crystal Properties

Property	Value
Crystal structure	trigonal - rhombohedral
Cleavage	perfect
Tenacity	-
Fracture	uneven
Luster	silky

Similar Minerals

Dana Number : 31.09.12.01

Class: 31

Group: 31.09

Subgroup: 31.09.12 - fibroferrite

Dana Number	Mineral Name	Formula
31.09.12.01	fibroferrite	Fe+3(SO4)(OH)·5(H2O)

Nickel-Strunz Number : 07.DC.15

Group : 07

Subgroup : DC

Nickel-Strunz Number	Mineral Name	Formula
07.DC.15	fibroferrite	Fe+3(SO4)(OH)·5(H2O)

Specimens

Localities

Uses