Melanophlogite

Overview

SiO2·n(C,H,O,S)
Fluorescence: gray-white under SW and LW	Not Radioactive	Magnetic: no

Description

Physical Properties

Property	Value
Density	1.99-2.11 g/cc
Hardness - Mohs	Melanophlogite - 6.5-7  10 Diamond 9 Carborundum 8 Topaz 7 Quartz 6 Orthoclase 5 Apatite 4 Fluorite 3 Calcite 2 Gypsum 1 Talc
Color	brown, colorless, yellow
Streak	white

Crystal Properties

Property	Value
Crystal structure	tetragonal - ditetragonal dipyramidal
Cleavage	none
Tenacity	brittle
Fracture	brittle
Luster	vitreous, glassy

Similar Minerals

Dana Number : 75.02.02.01

Class: 75

Group: 75.02

Subgroup: 75.02.02 - melanophlogite

Dana Number	Mineral Name	Formula
75.02.02.01	melanophlogite	SiO2·n(C,H,O,S)

Nickel-Strunz Number : 04.DA.25

Group : 04

Subgroup : DA

Nickel-Strunz Number	Mineral Name	Formula
04.DA.25	melanophlogite	SiO2·n(C,H,O,S)

Specimens

Localities

Uses