Chabazite-Sr

chabazite-Sr

gonnardite

seidozerite

vinogradovite

Images

Formula: (Sr,Ca)₂[Al₄Si₈O₂₄].11H₂O
Tectosilicate (framework silicate), chabazite-levyne subgroup, zeolite group
Crystal system: Trigonal
Specific gravity: 2.16 measured, 2.20 calculated
Hardness: 4 to 4½
Streak: White
Colour: Colourless, yellowish
Environments

Pegmatites

Localities

At the type locality, Seidozeritovyi pegmatite #1, Suoluaiv Mt, Lovozersky District, Murmansk Oblast, Russia, chabazite-Sr occurs as coarse-shaped disk-like twinned crystals up to 0.3 mm in size, in a thin aegirine - K-fe1dspar pegmatite crosscutting nepheline and nosean syenites. Associated minerals include analcime, apatite, gonnardite, låvenite, phillipsite subgroup minerals, seidozerite and vinogradovite (Mindat).
Chabazite-Sr from Seidozeritovyi pegmatite #1 -Image

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