Formula: {Na}{CaNa}{Mg₅}(Si₈O₂₂)(F,OH)₂

Species:

Colour: Brown to brownish-red, rose-red, yellow, grey-brown, also pale to dark green.

Lustre: Vitreous

Hardness: 5 – 6

Specific Gravity: 3.17

Crystal System: Monoclinic

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

Name: For its relationship to richterite.

Type Locality: Pit No. 97, Miass, Chelyabinsk Oblast – Russia

The F analogue of richterite.