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- Availability
- Sold
- Locality
- Mt. Pleasant mine, Charlotte Co., New Brunswick, Canada
- Formula
- (Fe3+,Mn2+)Sn4+(OH,O)6
- Size
- Thumbnail 3x2.4x2cm
- Tagged
- tin
Murky yellow, crude tetragonal dipyramids to about 0.5mm. There are numerous crystals all over the specimen. I am not sure what the brownish yellow spherical groups are. The matrix is Fluorite.
- Availability
- Sold
- Locality
- Crestmore, Riverside Co., California, United States
- Formula
- Ca9Si6O16(OH)10·6H2O
- Size
- SmCabinet 6.5x4x1cm
- Special Info
- Type Locality
I have dealt a lot of Crestmore material and acquired quite a bit over the years, but I have never seen a Jennite of this magnitude from the type locality, Crestmore. All of the white crystals on this specimen are Jennite. On the back of the old label Kidwell states whee his specimen originated: "1963 C.M. Jenni".....a bonus of course.
- Availability
- Sold
- Locality
- Centennial Eureka mine, Tintic dist., Juab Co., Utah, United States
- Formula
- Cu2+3Te6+O6·2H2O
- Size
- Thumbnail 2x1.5x0.4cm
- Tagged
- copper , tellurium
Small, tiny, about 0.25mm or less single bright green, extremely rare, Jensenite crystal associated with dark, grass green, Mcalpineite on the backside. The Jensenite was visually identified by Martin Jensen himself.
- Availability
- Sold
- Locality
- Centennial Eureka mine, Tintic dist., Juab Co., Utah, United States
- Formula
- Cu2+3Te6+O6·2H2O
- Size
- Thumbnail 1.8x1.5x0.6cm
- Tagged
- copper , tellurium
- Special Info
- Type Locality
- Special Info
- EDS Confirmed
Tiny 0.3mm emerald green cubic-looking (it is monoclinic and usually prismatic) crystal at the arrow. Comes with Martin Jensen's hand-written label. Very rare.