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Chabazite

UNB-2017-0195Minerals » Tectosilicates

Description

Six samples of pink euhedral rhombohedrons of Chabazite crystals with a vitreous lustre. Average crystal size: 0.8 cm x 0.8 cm x 0.8 cm. Chabazite (CaAl2Si4O12 x 6H2O) can be white, yellow, pink or red in colour. Lustre is vitreous and streak is white. Hardness is 4 to 5. Cleavage is poor in three directions and is parallel to the rhombohedron faces. Chabazite usually occurs as rhombohedrons that resembles cubes but can also be compact in form.

Specifications

Object nameChabazite
IDUNB-2017-0195
Legal statusPermanent collection
CategoryMineral
Classification
Mineral group:
Tectosilicates
Composition
  • CaB2Si2O8(OH,F)2
  • (Ca,Na2,K2)Al2Si4O12•6H2O
  • (Ca,Na)AlSi2O8
  • (Na2,K2)Al2Si4O12•2H2O
  • (Na,Ca)4(Al,Na)3Si9O24(Cl,CO3)2
  • (MAlO2)(SiO 2)x(H2O)y
  • (Na,K)AlSiO4
  • Na2Al2Si3O10·2H2O
  • KAlSi3O8
  • Na2Ca2Al6Si9O30·8H2O
  • K(AlSi2O6)
  • CaAl2Si4O12·4H2O
  • Pectolite NaCa2Si3O8(OH)2H2O with trace amounts of copper
  • (Ca,Na)(Al,Si)4O8
  • SiO2 with water inclusion
  • (Na,Ca)4-8Al6Si6(O,S)24(Cl,SO4)1-2
  • Na8(Al6Si6O24)Cl2
  • CaAl2Si3O10·3H2O
  • SiO2
  • (Cs,Na)2Al2Si4O12·2H2O
  • (Na, Ca)(Al, Si)AlSi2O8
  • KAlSi3O8
  • (Na,K)AlSi3O8
  • (Na,K)AlSi3O8
  • CaAl2Si2O8
  • SiO2
OriginParrsboro, Nova Scotia, Canada
Pieces6
PartialNo
Measurements
  • 4.7cm x 3.5cm x 1.9cm
  • 3.1cm x 5cm x 4.3cm
  • 5.3cm x 3.3cm x 1.9cm
  • 7.2cm x 5.9cm x 2.8cm
  • 4.1cm x 3.9cm x 2.7cm
  • 6.8cm x 6cm x 2cm

Map of Origin

Publications

  • Chesterman, C.W. 1979. Audubon Society, Field Guide to North American Rocks and Minerals. Knopf.