Fluoromagnesiohastingsite

Overview

(Na,K)Ca2(Mg,Fe+3,Ti)5(Si,Al)8O22F2
Fluorescence: none	Barely Detectable Radiation	Magnetic: no

Description

Physical Properties

Property	Value
Density	3.18 g/cc
Hardness - Mohs	Fluoromagnesiohastingsite - 6  10 Diamond 9 Carborundum 8 Topaz 7 Quartz 6 Orthoclase 5 Apatite 4 Fluorite 3 Calcite 2 Gypsum 1 Talc
Color	brown
Streak	light red brown

Crystal Properties

Property	Value
Crystal structure	monoclinic - prismatic
Cleavage	perfect
Tenacity	brittle
Fracture	splintery
Luster	vitreous, glassy

Similar Minerals

Dana Number : 66.01.03a.15b

Class: 66

Group: 66.01

Subgroup: 66.01.03a - calcic amphiboles

Dana Number	Mineral Name	Formula
66.01.03a.01	tremolite	Ca2Mg5Si8O22(OH)2
66.01.03a.05	ferrohornblende	Ca2(Fe+24(Al,Fe+3))Si7AlO22(OH)2
66.01.03a.10a	fluoroedenite	NaCa2Mg5Si7AlO22(F,OH)2
66.01.03a.12	pargasite	NaCa2(Mg,Fe+2)4Al(Si6Al2)O22(OH)2
66.01.03a.14	magnesiohastingsite	NaCa2(Mg4Fe+3)Si6Al2O22(OH)2
66.01.03a.15b	fluoromagnesiohastingsite	(Na,K)Ca2(Mg,Fe+3,Ti)5(Si,Al)8O22F2
66.01.03a.20	fluorocannilloite	CaCa2(Mg4Al)Si5Al3O22F2

Nickel-Strunz Number : 09.DE.10

Group : 09

Subgroup : DE

Nickel-Strunz Number	Mineral Name	Formula
09.DE.10	ferrohornblende	Ca2(Fe+24(Al,Fe+3))Si7AlO22(OH)2
09.DE.10	fluorocannilloite	CaCa2(Mg4Al)Si5Al3O22F2
09.DE.10	fluoroedenite	NaCa2Mg5Si7AlO22(F,OH)2
09.DE.10	fluoromagnesiohastingsite	(Na,K)Ca2(Mg,Fe+3,Ti)5(Si,Al)8O22F2
09.DE.10	magnesiohastingsite	NaCa2(Mg4Fe+3)Si6Al2O22(OH)2
09.DE.10	pargasite	NaCa2(Mg,Fe+2)4Al(Si6Al2)O22(OH)2
09.DE.10	tremolite	Ca2Mg5Si8O22(OH)2

Specimens

Localities

Uses