Krupkaite

Overview

PbCuBi3S6
Fluorescence: none	Not Radioactive	Magnetic: no

Description

Physical Properties

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

Crystal Properties

Property	Value
Crystal structure	orthorhombic - pyramidal
Cleavage	-
Tenacity	-
Fracture	-
Luster	metallic

Similar Minerals

Dana Number : 03.04.05.02

Class: 03

Group: 03.04

Subgroup: 03.04.05 - aikinite

Dana Number	Mineral Name	Formula
03.04.05.01	aikinite	PbCuBiS3
03.04.05.02	krupkaite	PbCuBi3S6

Nickel-Strunz Number : 02.HB.05a

Group : 02

Subgroup : HB

Nickel-Strunz Number	Mineral Name	Formula
02.HB.05a	aikinite	PbCuBiS3
02.HB.05a	krupkaite	PbCuBi3S6

Specimens

Localities

Uses