"When the last question is answered, the illusion ends." Gerald Reginald Pauley, 1987
HELVINE
Mn2+4Be3(SiO4)3S
Crystal: Cubic
Hardness: 7 - 7.5
Sp.G.: 3.61
Cleavage: None
Fracture: Conchoidal to Uneven
Colour: Light to Dark Green, Yellow to Reddish Brown, Pink
Lustre: Greasy to Vitreous
Rare Mineral
Helvine occurs in abundance at Huanggang Mine,Inner Mongolia. Geologically, the Huanggang mines are an Fe-Sn exogreisen, formed when
Cretaceous-age anorogenic-type granites intruded calcaerous sedimentary rocks and metal-rich fluids migrated upward from the granitic intrusives into overlying skarn and vein deposits, forming rich
polymetallic orebodies which are also rich in
crystallized minerals found in abundant open
pockets. Helvite-Genthelvite crystals from
Huanggang are recognized as being probably the best in the world. No healing properties known
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