| Webster's Online Dictionary |
| Domain | Definition | ||
| Mining | An orthorhombic mineral, 4[Be4 Si2 O7 (OH)2 ]; colorless to clear pale yellow and shows heart-shaped twins; inpegmatites; a source of beryllium. See also: beryllium disilicate. (references) | ||
| Wikipedic | Bertrandite is a beryllium sorosilicate hydroxide mineral with composition: Be4Si2O7(OH)2. Bertrandite is a colorless to pale yellow orthorhombic mineral with a hardness of 6-7. It is commonly found in beryllium rich pegmatites and is in part an alteration of beryl. Bertrandite often occurs as a pseudomorphic replacement of beryl. It, with beryl, are ores of beryllium. (references) | ||
Source: compiled by the editor from various references; see credits. | Top | ||
Topics by Level of Interest: BERTRANDITE | ||||
| Topics sorted by level of Interest | Level (1=low, 600=high) | Topics sorted Alphabetically | Level (1=low, 600=high) | |
| Bertrandite | 4 | Bertrandite | 4 | |
Source: the editor, created by/for EVE to gauge likely levels of human interest in linguistically triggered topics (compiled across various sources, such as Wikipedia and specialty expression glosses). | ||||