| Answer | Crossword Clue |
|---|---|
| grossularites | GROSSULARITE, light-green, pink or brown garnet |
| grossularite | light-green, pink or brown garnet |
| andradite | A mineral of the garnet group, containing calcium and iron. It occurs as yellow, green, brown, or black crystals, sometimes of gem quality |
| andalusite | A gray, green, brown, or pink aluminosilicate mineral occurring mainly in metamorphic rocks as elongated rhombic prisms, sometimes of gem quality |
| illites | any of a group of clay minerals, hydrous potassium aluminosilicates, characterized by a three-layer micalike structure and a gray, light green, or yellowish-brown color |
| illite | any of a group of clay minerals, hydrous potassium aluminosilicates, characterized by a three-layer micalike structure and a gray, light green, or yellowish-brown color |
