hat
Chondrodit se biaxial (+), ak endis refraktif yo diferan rapòte kòm nα = 1.592 - 1.643, nβ = 1.602 - 1.655, nγ = 1.619 - 1.675, birefringence = 0.025 - 0.037, ak 2V mezire kòm 64 ° 90 °, kalkile: 76 ° 78 °. Endis refraksyon yo gen tandans ogmante soti nan norbergite klinohomit nan gwoup la imid. Yo menm tou yo ogmante ak Fe2 + ak Ti4 + ak ak (OH) - ranplase pou F-. Dispersion: r> v.
eng
Chondrodite is biaxial(+), with refractive indices variously reported as nα = 1.592 – 1.643, nβ = 1.602 – 1.655, nγ = 1.619 – 1.675, birefringence = 0.025 – 0.037, and 2V measured as 64° to 90°, calculated: 76° to 78°. Refractive indices tend to increase from norbergite to clinohumite in the humite group. They also increase with Fe2+ and Ti4+ and with (OH)− substituting for F−. Dispersion: r > v.