gem Earth Science

4 个科学问题 · 地球科学 Earth Science

本页目录

红宝石和蓝宝石其实是同一种东西,为什么颜色却不同?

Rubies and sapphires are the same mineral—why are their colors different?

它们都是刚玉(氧化铝),本身无色;只因混入了极少的微量元素——红宝石靠铬显红,蓝宝石靠铁和钛显蓝,所以“同矿不同色”。
Both are corundum (aluminum oxide), colorless by itself; trace elements tint them—chromium makes ruby red, iron and titanium make sapphire blue—so it's the same mineral in different colors.
难度 专业 · 适合 高中(15-18) CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source

舒良树 主编,《普通地质学》第3版(曾获全国首届优秀教材一等奖)

Shu Liangshu ed., General Geology, 3rd ed. (winner of the 1st National Excellent Textbook Award)

#刚玉 #致色元素

钻石其实是碳做的,它和铅笔里的石墨有什么不同?

Diamond is made of carbon—what makes it different from graphite in a pencil?

钻石和石墨都是纯碳,但原子排列方式不同:钻石在高温高压下原子紧锁成坚硬透明晶体,石墨的碳原子层松散易滑,所以一个最硬、一个能写字。
Both are pure carbon but arranged differently: diamond's atoms lock tightly under high pressure into a hard clear crystal, while graphite's carbon layers slide easily, so one is hardest and the other writes.
难度 进阶 · 适合 初中(12-15) CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source

舒良树 主编,《普通地质学》第3版(曾获全国首届优秀教材一等奖)

Shu Liangshu ed., General Geology, 3rd ed. (winner of the 1st National Excellent Textbook Award)

#钻石 #同素异形体

普通人想挑出真宝石,最实用的几招是什么?

What are the most practical tricks for spotting a real gem?

可以看硬度(真宝石通常能在玻璃上留痕却不易被划伤)、观察折射带来的火彩、以及用放大镜找天然包裹体;最可靠还是送检,因为仿品越来越像。
Check hardness (real gems scratch glass yet resist scratches), look for refractive 'fire', and use a loupe for natural inclusions; the surest way is a lab test, since fakes keep improving.
难度 进阶 · 适合 初中(12-15) CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source

舒良树 主编,《普通地质学》第3版(曾获全国首届优秀教材一等奖)

Shu Liangshu ed., General Geology, 3rd ed. (winner of the 1st National Excellent Textbook Award)

#宝石鉴别 #硬度

祖母绿那抹绿色是从哪儿来的?

Where does emerald's green color come from?

祖母绿是绿柱石家族的一员,原本接近无色,因为晶体里混进了一点点铬或钒,就染出了鲜艳的绿色。
Emerald is a member of the beryl family, nearly colorless on its own; a tiny bit of chromium or vanadium tints it the vivid green.
难度 入门 · 适合 幼儿(3-6) CC BY 4.0 · 已核验 · Verified 2026-08-23 · 2 条独立证据
来源 · Source

舒良树 主编,《普通地质学》第3版(曾获全国首届优秀教材一等奖)

Shu Liangshu ed., General Geology, 3rd ed. (winner of the 1st National Excellent Textbook Award)

#祖母绿 #致色