Rikunarita-ORG/Wikinium huggingface dataset:
# Beijing

| Beijing 北京 |
| --- |
| Municipality |
| Municipality of Beijing · 北京市 |
| From top: Tiananmen, the Bird's Nest stadium, the Temple of Heaven, and the Beijing CBD |
| Location of the Municipality of Beijing within China |
| Country |  China |
| Settled | c. 473 BC |
| Divisions  - County-level  - Township-level |  16 districts, 2 counties 289 towns and villages |
| Government |
|  • Type | Municipality |
|  • CPC Ctte Secretary | Liu Qi |
|  • Mayor | Guo Jinlong |
| Area(ranked 29th) |
|  • Municipality | 16,801.25 km2 (6,487.00 sq mi) |
| Elevation | 43.5 m (142.7 ft) |
| Population (2007) |
|  • Municipality | 17,430,000 |
|  • Metro | 11,940,000 |
|  • Density rank | (4th) |
|   | (26th) |
| Demonym(s) | Beijinger |
| Major ethnic groups |
|  • Han | 96% |
|  • Manchu | 2% |
|  • Hui | 2% |
|  • Mongolian | 0.3% |
| Time zone | UTC+8 (China Standard Time) |
| Postal code | **1000**00 - **1026**29 |
| Area code(s) | 10 |
| GDP | 2008 estimate |
|  - Total | US$151.12 billion (nominal) US$283.92 billion (PPP) (10th) |
|  - Per capita | US$9,082 (nominal) US$17,063 (PPP) (2nd) |
| HDI (2006) | 0.897 (2nd) |
| License plate prefixes | 京A, C, E, F, H, J, K, L, M, N, P 京B (taxis) 京G, Y (outside urban area) 京O (police and authorities) 京V (in red color) (military headquarters, central government) |
| **City trees** | Chinese arborvitae (*Platycladus orientalis*) |
|   | Pagoda tree (*Sophora japonica*) |
| **City flowers** | China rose (*Rosa chinensis*) |
|   | Chrysanthemum (*Chrysanthemum morifolium*) |
| Website | www.beijing.gov.cn |

* Beijing
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## Itokasi
# Díámọ̀ndì

| Diamond |
| --- |
| A scattering of round-brilliant cut diamonds shows off the many reflecting facets. |
| General |
| Category | Native Minerals |
| Chemical formula | C |
| Identification |
| Molar mass | 12.01 g·mol-1 |
| Color | Typically yellow, brown or gray to colorless. Less often blue, green, black, translucent white, pink, violet, orange, purple and red. |
| Crystal habit | Octahedral |
| Crystal system | Isometric-Hexoctahedral (Cubic) |
| Cleavage | 111 (perfect in four directions) |
| Fracture | Conchoidal (shell-like) |
| Mohs scale hardness | 10 |
| Luster | Adamantine |
| Streak | colorless |
| Diaphaneity | Transparent to subtransparent to translucent |
| Specific gravity | 3.52±0.01 |
| Density | 3.5–3.53 g/cm3 |
| Polish luster | Adamantine |
| Optical properties | Singly Refractive |
| Refractive index | 2.418 (at 500 nm) |
| Birefringence | None |
| Pleochroism | None |
| Dispersion | 0.044 |
| References |  |

In mineralogy, **díámọ̀ndì** (from the ancient Greek αδάμας – *adámas* "unbreakable") is an allotrope of carbon, where the carbon atoms are arranged in a variation of the face-centered cubic crystal structure called a diamond lattice. Diamond is less stable than graphite, but the conversion rate from diamond to graphite is negligible at ambient conditions. Diamond is renowned as a material with superlative physical qualities, most of which originate from the strong covalent bonding between its atoms. In particular, diamond has the highest hardness and thermal conductivity of any bulk material. Those properties determine the major industrial application of diamond in cutting and polishing tools and the scientific applications in diamond knives and diamond anvil cells.

## Itokasi