164.80 CTS Natural Rhodochrosite Argentina Gem grade TBM-1715

Description

RHODHOCROSITE

Origin Argentina

free form cabs
highly polished
Natural Rhodochrosite

Beautiful watermelon – Color
Treatment-NONE

Diaphaneity, Transparent to translucent. Specific gravity, 3.7. Optical properties, Uniaxial (-). Refractive index, n = 1.814 – 1.816 n = 1.596 – 1.598. Birefringence, = 0.218. Pleochroism, weak. Ultraviolet fluorescence, None. References. Rhodochrosite is a manganese carbonate mineral with chemical composition MnCO3.

Crystal system: Trigonal