Fluorite
Fluorite
- Sold
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- Availability
- Sold
- Size
- 8 x 5 x 4 cm - Sm Cabinet
- Formula
- CaF2 (RRUFF)
- Locality
- St. Agnes, Cornwall, England
- Tagged
- antique , halide
This beautiful specimen of Fluorite is accompanied by both a Fred Canfield and US National Museum tags both of which have individual identification numbers matching the numbers on the mineral (see photos). Canfield donated his collection to the Smithsonian (US National) museum and this specimen is most likely one of those specimens. It's not only an excellent antique mineral specimen but a good one at that with composite Fluorite crystals to 7mm with yellow to colorless cores and purple rims. The matrix appears to be a folded mudstone, perhaps the 'killas' mentioned on pages 4 and 107 of Embrey and Symes (1987). Refer to page 107 for a short discussion of these Fluorites probably from Trevaunance mines.
Antique Specimen
Fluorite
- Formula
- CaF2
- Crystal System
- Isometric
- Crystal Habit
- Crystalline - Coarse, Massive - Granular, Disseminated
- Cleavage
- Three perfect, octahedral cleavages.
- Luster
- Vitreous (Glassy)
- Color
- purple, clear, yellow, green, red, blue
- Streak
- white
- Geological Setting
- Occurs in a wide range of geologic environments including low temperature Missississippi Valley lead-zinc deposits, hydrothermal gold deposits, Alpine cleft metamorphic environments
- Class
- Isometric - Hexoctahedral
- Fracture
- Uneven
- Hardness
- 4
Data courtesy of Webmineral.
- Collection
- Phillips Collection
- Special Info
- Antique Specimen
Ex. Fredrick Canfield & US National Museum specimen
- Mineralpedia
- View Fluorite
- On Dakota Matrix
- Previously Sold Fluorite
- On Dakota Matrix
- Other Available Fluorite
- WebMineral
- View Fluorite
- Mindat
- View Fluorite
