Turkestanite

Overview

Th(Ca,Na)2K(Si8O20)·n(H2O)

Fluorescence: noneRadioactiveRadioactiveRadioactiveRadioactive
Strongly Radioactive		Magnetic: no
Description
Physical Properties
PropertyValue

Density

3.36 g/cc

Hardness - Mohs

Turkestanite - 5.5-6.0 10Diamond
9Carborundum
8Topaz
7Quartz
6Orthoclase
5Apatite
4Fluorite
3Calcite
2Gypsum
1Talc

Color

green, brown

Streak

white

Crystal Properties
PropertyValue

Crystal structure

tetragonal - ditetragonal dipyramidal

Cleavage

imperfect

Tenacity

brittle

Fracture

conchoidal

Luster

vitreous, glassy

Similar Minerals

Dana Number : 63.01.01.03


Class: 63


Group: 63.01


Subgroup: 63.01.01 - steacyite


Dana NumberMineral NameFormula
63.01.01.01steacyiteK1-x(Ca,Na)2ThSi8O20
63.01.01.03turkestaniteTh(Ca,Na)2K(Si8O20)·n(H2O)

Nickel-Strunz Number : 09.CH.10


Group : 09


Subgroup : CH


Nickel-Strunz NumberMineral NameFormula
09.CH.10steacyiteK1-x(Ca,Na)2ThSi8O20
09.CH.10turkestaniteTh(Ca,Na)2K(Si8O20)·n(H2O)
Specimens
Localities
Uses