 | | Report (issue) | | 000 to 2,000 m above sea level. The basalt is an augite-olivine variety. The alkaline trachyte and pantelleritic... Distribution of volcanic features in Longwan district (listing 6) of Manchuria. Modified after Ogura...volcanic features (filled circles) in Qixingshan district (listing 10) of Manchuria. Shuangliao is a city...Wudalianchi (five connected lakes) district (listing 20) of Heilongjiang Province, northeastern China. Lakes...distant were all black, glassy limburgites, with augite and olivine microlathes set in a brown glass. In |  | | Book | | g., Hawaii), sapphires in Australia, Cambodia, Thailand, and Vietnam 14 Glowing red Diamond-bearing volcanic...In some countries, such as Africa, Brazil, and Thailand, the most advanced, computer-con- A bird’s-eye...topaz, tourmaline, zircon, collectors’ gems THAILAND Garnet, ruby, sapphire, spinel, zircon SRI LANKA... since alumina, their 7 Center left: In the province of Sabaragamuva on Sri Lanka, numerous thatched...corundums are Mogok in Myanmar, Chantaburi and Bo Phloi in Thailand, Ratnapura on Sri Lanka, Anakie in Queensland |
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