| Heat treatment     | Heat treatment | Crystalline phases detected from X-ray diffraction | Crystalline phases detected from X-ray diffraction | Crystalline phases detected from X-ray diffraction | Crystalline phases detected from X-ray diffraction | Crystalline phases detected from X-ray diffraction |
| Temperature (degC) | Time (h)       | Amorphous                                          | Mg2Al4Si5O18                                       | MgTi2O5                                            | Indialite                                          | Cordierite                                         |
| 850                | 1              | X                                                  |                                                    |                                                    |                                                    |                                                    |
| 850                | 5              | X                                                  | X                                                  |                                                    |                                                    |                                                    |
|                    |                |                                                    |                                                    |                                                    |                                                    |                                                    |
| 900                | 1              | X                                                  | X                                                  |                                                    |                                                    |                                                    |
| 900                | 2              | X                                                  | X                                                  |                                                    |                                                    |                                                    |
|                    |                |                                                    |                                                    |                                                    |                                                    |                                                    |
| 950                | 1              | X                                                  | X                                                  |                                                    |                                                    |                                                    |
| 950                | 5              | X                                                  | X                                                  | X                                                  | X                                                  |                                                    |
|                    |                |                                                    |                                                    |                                                    |                                                    |                                                    |
| 975                | 1              | X                                                  | X                                                  |                                                    |                                                    | X                                                  |
|                    |                |                                                    |                                                    |                                                    |                                                    |                                                    |
| 1000               | 1              | X                                                  | X                                                  |                                                    |                                                    | X                                                  |
| 1000               | 2              | X                                                  | X                                                  |                                                    |                                                    | X                                                  |

Caption: Crystalline phase development in MAS-T glass on heat treatment

You are provided with a table from a material science paper. Here are JSON templates for two types of numeric cells: "Other" and "Glass_Compound_Amount":
{"value": "xx", "type": "Other"}
{"value": "xx", "type": "Glass_Compound_Amount", "constituent": "xx", "unit": "xx", "material": "xx"}

Please describe all numeric cells in the above table following the JSON templates (proceeding by row in a left-right, top-down direction). For each cell, output one JSON description per line. For any unanswerable attributes in the templates, set their value to the placeholder "xx".

Cell Description:
{"value": "850", "type": "Other"}
{"value": "1", "type": "Other"}
{"value": "850", "type": "Other"}
{"value": "5", "type": "Other"}
{"value": "900", "type": "Other"}
{"value": "1", "type": "Other"}
{"value": "900", "type": "Other"}
{"value": "2", "type": "Other"}
{"value": "950", "type": "Other"}
{"value": "1", "type": "Other"}
{"value": "950", "type": "Other"}
{"value": "5", "type": "Other"}
{"value": "975", "type": "Other"}
{"value": "1", "type": "Other"}
{"value": "1000", "type": "Other"}
{"value": "1", "type": "Other"}
{"value": "1000", "type": "Other"}
{"value": "2", "type": "Other"}