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Home / News / Knowledge / Gypsum Rock Sample Preparation

Home / News / Knowledge / Gypsum Rock Sample Preparation

Gypsum Rock Sample Preparation

When it comes to gypsum rock, don’t just think of construction gypsum boards! This sedimentary rock formed from calcium sulfate minerals has plenty of hidden talents.

Its formation dates back to ancient oceans or lakes. As water evaporated, calcium sulfate crystals gradually precipitated and compacted, eventually forming the gypsum rock we see today. It is not only visually appealing—some varieties are pure white and fine-grained, while others feature pale blue or light gray veins, making them ideal as decorative stone materials—but also highly practical. Beyond the construction industry, it is used in medicine (for making orthopedic casting plaster), agriculture (for improving soil structure), and even in the food industry as a stabilizer.

From an ancient geological wonder to a staple of modern life, gypsum rock has quietly become an integral part of various aspects of our daily lives after millions of years of sedimentation.

Below are the sample preparation parameters and metallographic effect appreciation for gypsum rock:

1️⃣ Grinding: MET-S P800-2500

2️⃣ Rough Polishing: SC + 3μm PD-WT

3️⃣ Final Polishing: ZN + SO-A539

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