Combination piece with radial fibrous inesite and xonotlite
General
Category
Inosilicates
Formula (repeating unit)
Ca6Si6O17(OH)2
IMA symbol
Xon[1]
Strunz classification
9.DG.35
Dana classification
66.3.1.1
Crystal system
Monoclinic
Crystal class
Prismatic (2/m) (same H-M symbol)
Space group
P2/a
Unit cell
879.33
Identification
Color
White, grey, pale pink, lemon white, colorless
Cleavage
Perfect, Good
Fracture
Splintery, tough
Mohs scale hardness
6.5
Luster
Vitreous, silky, pearly
Streak
White
Diaphaneity
Transparent, translucent
Specific gravity
2.70 – 2.72
Density
Measured: 2.70 – 2.72 Calculated: 2.71
Optical properties
Biaxial (+)
Refractive index
nα = 1.583 nβ = 1.585 nγ = 1.595
Birefringence
0.012
2V angle
50°
Ultraviolet fluorescence
Short UV = weak gray-white Long UV = weak white
Common impurities
Fe, Mn, H2O
Xonotlite, or eakleite, is a mineral of general formula Ca6Si6O17(OH)2 named by the German mineralogist Karl Friedrich August Rammelsberg in 1866. The name originates from its discovery locality, Tetela de Xonotla, Puebla, Mexico. Although it was discovered in 1866, it was first described in 1959. It is approved by the IMA, but it is a grandfathered species, meaning the name supposedly represents a valid species til this day.[2]
Xonotlite, or eakleite, is a mineral of general formula Ca6Si6O17(OH)2 named by the German mineralogist Karl Friedrich August Rammelsberg in 1866. The...
Symbol Name Symbol Xanthiosite Xth Xenotime-(Yb) Xtm-Yb Ximengite Xim Xonotlite Xon Xanthoconite Xcn Xiangjiangite Xjg Xingzhongite Xin Xuite Xu Xanthoxenite...
limestone and in skarn Thaumasite – Complex calcium silicate hydrate mineral Xonotlite – Inosilicate mineral Other calcium aluminium silicate hydrate, (C-A-S-H)...
Inosilicate alteration mineral in metamorphosed limestone and in skarn Xonotlite – Inosilicate mineral Other calcium aluminium silicate hydrate, (C-A-S-H)...
temperature above 250 °C, gyrolite recrystallizes into 1.13 nm tobermorite and xonotlite. Gyrolite is also one of the rare phases detected in situ along with pectolite...
occurs in association with apophyllite, calcite, kinoite, smectite, and xonotlite. In 1968, Jun Ito published the results of synthesis of various lead calcium...
Mammadov successfully defended his dissertation on the "Crystal structure of xonotlite and wollastonite minerals" on the specialty of "Crystallography and Crystallophysics"...
independent silicates, which includes; SilO4, Si4O4, and Si5O4 similar to the xonotlite double chains structure. Although eveslogite has a rigid structure, the...
mozartite, serandite-pectolite, strontiopiemontite-tweddillite, and xonotlite. Manganvesuvianite is a member of the vesuvianite group and is the manganese...
with afwillite, apophyllite, calcite, natrolite, oyelite, scawtite, and xonotlite. At the type locality, the mineral occurred in a large structure of dolerite...
there with other hydrated calcium silicates (tobermorite, gyrolite and xonotlite) and zeolites (aluminosilicates: laumontite, mesolite, thomsonite, and...
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