 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
 |
|
|||||||||||||||||||||
 |
 |
 |
 |
 |
 |
 |
 |
 |
|
|||||||||||||
 |
 |
 |
 |
 |
 |
|
||||||||||||||||
 |
 |
 |
 |
|
||||||||||||||||||
 |
 |
 |
 |
|
||||||||||||||||||
 |
 |
 |
|
|||||||||||||||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|||||||||||||||||||||
|
|
|
|
|
|
|
|
|
|
|||||||||||||
|
|
|
|
|
|
|
||||||||||||||||
|
|
|
|
|
||||||||||||||||||
|
|
|
|
|
||||||||||||||||||
|
|
|
|
|||||||||||||||||||
Ca2SiO3(OH)(F).H2O
Triclinic
Bultfonteinite, a calcium silicate hydroxide mineral, is rare at Franklin and is unknown from Sterling Hill. It occurs as colorless to white 1 mm crystals with vitreous luster. Partial analysis of these crystals yields SiO2 26.8, CaO 52.2, F 9.6 wt. %. Franklin bultfonteinite occurs as subparallel groupings of prismatic crystals in interstices between manganaxinite and calcite crystals in a light yellow rock composed of calcite, barite, manganaxinite, possible grossular, and sparse amounts of mica, andradite, hardystonite, and clinohedrite.
 |
|
|||
|
|
||||
|
||||
| Copyright © 1995 by Pete J. Dunn |
Website
by Herb Yeates
|
|||
|
|
|
|||
|
Link
to homepage
|
||||
|
This
page created: January 11, 2001 |
||||
|
|
|
|||
