The fluorite unit cell shows a face centered cubic crystal structure of Calcium atoms with Fluorine occupying the 8 tetrahedral interstital sites. Each calcium is coordinated to 8 fluoride anions (F-) which in turn is surrounded by four Ca2+ cations. This gives it 4 axes of perfect cleavage, often yielding octahedral shaped crystals.
Indigo Instruments has maintained a substantial inventory of genuine Cochranes of Oxford (Orbit) atoms & bonds for over 30 years. These parts are compatible with every molecular model kit we have sold since day 1. This level of quality may appear expensive but no parts support from other vendors costs even more.
P/N | Description | QTY |
---|---|---|
68186-25 | Wobbly bond, 25mm, each | 271 |
68247C | Atom, Orbit, P "k", tetrahedral, purple | 88 |
68264C | Atom, Orbit "p", metal, 8 coordinate, grey | 44 |