Collection: Tremolite

Formula: ◻{Ca₂}{Mg₅}(Si₈O₂₂)(OH)₂

The tremolite-actinolite series are defined as calcium amphiboles with A(Na+K+ 2Ca)<0.5 apfu and with C(Al+Fe3++2Ti)<0.5 apfu. The W position may contain (OH), F or Cl.
Tremolite is defined with
C²⁺ position: Mg>4.5 apfu
W position: (OH) dominant.
Tremolite is one of the few amphiboles that has not been redefined or renamed in any of the amphibole nomenclature reports.

Colour: White, brown, colourless, grey, light green, green, light yellow, pink-violet

Luster: Vitreous, Silky

Hardness: 5 - 6

Specific Gravity: 2.99 - 3.03

Crystal System: Monoclinic

Member of: Tremolite Root Name Group > Calcium Amphibole Subgroup > w(OH, F, Cl)-dominant Amphibole Group > Amphibole Supergroup

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Green Tremolite. 390g.

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€173,55

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