Opals get their milky sheen and rainbow sparkle from the way light is scattered by the tiny crystals that form them 猫眼石呈现出乳白色光泽和彩虹般光芒,这是由构成猫眼石的微小晶体散射光线而形成的。
Opals get their milky sheen and rainbow sparkle from the way light is scattered by the tiny crystals that form them 猫眼石乳白色的光泽和彩虹般的光芒是由于进入其内的光线被组成其的微小晶体所分散成的。
But careful studies of microscopic , magma - filled bubbles trapped inside tiny crystals of quartz tell a different story 但是,详细研究石英的微小晶体内那些仅能在显微镜下看到、充填著岩浆的气泡,则令我们发现了不同的故事。
Snow particles fall at rates ranging from nearly zero for tiny crystals to about a metre per second for a typical snowflake and several times larger for melting snow 雪粒子由天上降至地上的度快慢各异,极小的晶体下降度近乎零,一般雪花则以每秒一米的速度,溶化中的雪还要快好几倍
Snow particles fall at rates ranging from nearly zero for tiny crystals to about a metre per second for a typical snowflake and several times larger for melting snow 雪粒子由天上降至地上的度快慢各异,极小的晶体下降度近乎零,一般雪花则以每秒一米的速度,溶化中的雪还要快好几倍