Borotellurites are chemical mixed anion compounds that contain any kind of borate and tellurite ions bound together via oxygen. They are distinct from borotellurates in which tellurium is in +6 oxidation state. There are also analogous boroselenites, with selenium instead of tellurium, and borosulfates containing sulfur. Borotellurites are colourless.
| chem | mw | crystal system | space group | unit cell | volume | density | comments | references | |
|---|---|---|---|---|---|---|---|---|---|
| K3BaTeB7O15 | monoclinic | P21/c | a=8.979 b=6.303 c=25.869 β=98.095° | transparent above 235 nm | [1] | ||||
| LaTeBO5 | 357.32 | orthorhombic | Pbca | a=10.8220 b=6.9216 c=11.5812 Z=8 | 867.50 | 5.472 | colourless; large birefringence | [2] |