How Are Crystals Made? 水晶的制造过程 скачать в хорошем качестве

How Are Crystals Made? 水晶的制造过程

How Are Crystals Made? Crystals form through natural geological processes or controlled lab methods. Here’s how they’re created: *Natural Crystal Formation* 1. **Magmatic Crystals**: Minerals like quartz crystallize as molten rock (magma) cools slowly underground. 2. **Hydrothermal Growth**: Hot, mineral-rich water deposits crystals (e.g., amethyst) in rock cavities over millennia. 3. **Evaporation**: Gypsum or salt crystals form when water evaporates from lakes or seas. *Synthetic Crystals* 1. **Flame Fusion (Verneuil Process)**: Used for rubies/sapphires—aluminum oxide powder melts in a flame and crystallizes as it cools. 2. **Hydrothermal Lab Growth**: Mimics nature by dissolving minerals in pressurized hot water, yielding emeralds or quartz in weeks. 3. **Czochralski Method**: Pulls silicon crystals from molten material for electronics. **Fun Fact**: Lab-grown crystals are chemically identical to natural ones but form in months, not millennia! --- **Headline Ideas**: "From Volcanoes to Labs: The Fascinating Science of Crystal Creation" "Nature vs. Science: How Do Crystals Form?" "Sparkling Secrets: The Journey of Natural and Synthetic Crystals" Want details on specific gems or technologies? Just ask!