Baidu
map
筛选条件 共查询到21条结果
排序方式
TECHNICAL EVOLUTION AND IDENTIFICATION OF RESIN-FILLED TURQUOISE

期刊: GEMS & GEMOLOGY, 2021; 57 (1)

Zhushan County is the most abundant source of commercial turquoise in China's Hubei Province, where mass production has been ongoing for several decad......

DETECTION OF COLOR TREATMENT AND OPTICAL BRIGHTENING IN CHINESE FRESHWATER "EDISON" PEARLS

期刊: GEMS & GEMOLOGY, 2021; 57 (2)

Color origin is an important part of pearl identification for gemological laboratories. Freshwater cultured pearls can exhibit a wide range of colors,......

COLOR CHARACTERISTICS OF BLUE TO YELLOW BERYL FROM MULTIPLE ORIGINS

期刊: GEMS & GEMOLOGY, 2020; 56 (1)

Aquamarine and heliodor are colored by Fe ions, an important coloring agent for beryl. Blue to yellow gem beryl was studied by quantitative spectrosco......

THE EVOLUTION OF CHINESE JADE CARVING CRAFTSMANSHIP

期刊: GEMS & GEMOLOGY, 2020; 56 (1)

Craftsmanship is a key element in Chinese jade carving art. In recent decades, the rapid development of tools has led to numerous changes in carving t......

HYDROGEN AND OXYGEN STABLE ISOTOPE RATIOS OF DOLOMITE-RELATED NEPHRITE: RELEVANCE FOR ITS GEOGRAPHIC ORIGIN AND GEOLOGICAL SIGNIFICANCE

期刊: GEMS & GEMOLOGY, 2020; 56 (2)

Hydrogen and oxygen stable isotope ratios of dolomite-related nephrites around the world were studied using data from the literature (n = 120). These ......

共21条页码: 1/2页15条/页
Baidu
map
Baidu
map
Baidu
map