carpholite

carpholite

[′kär·fə‚līt]
(mineralogy)
MnAl2Si2O6(OH)4 A straw-yellow fibrous mineral consisting of a hydrous aluminum manganese silicate occurring in tufts; specific gravity is 2.93.
References in periodicals archive ?
The "lean ore" is sometimes crossed by veins up to 80 cm wide and up to several tens of meters in length; this kind of vein yielded carpholite, native copper, sulfides, and probably the world's best specimens of tinzenite, sursassite and ganophyllite.
Carpholite is found as aggregates of yellow fibers in the quartz veins which cut chert.