[ কারান্ডাম্ ]noun 1) শক্ত স্ফটিকীকৃত খনিজ পদার্থ যাকে গুঁড়া বানিয়ে পালিশের কাজে ব্যবহার করা হয়2) মূল্যবান খনিজ রত্নবিশেষ; চুনি
corundum definition
Corundum is a hard, naturally-occurring mineral composed primarily of aluminum oxide.
corundum শব্দটির synonyms বা প্রতিশব্দ
corundom, corundum,
corundum Example in a sentence
The hardness of corundum, a mineral composed primarily of aluminum oxide, makes it a sought-after material for industrial abrasives.
Corundum’s distinctive hexagonal crystal structure contributes to its exceptional durability and resistance to scratching.
The natural color of corundum varies widely, ranging from colorless to shades of blue, red, and yellow.
Rubies and sapphires, both highly prized gemstones, are varieties of corundum characterized by their deep red and blue hues, respectively.
The ancient Egyptians used corundum tools for carving and polishing hard materials, such as stone and glass.
Modern industries employ corundum in high-performance cutting discs, grinding wheels, and other abrasive applications.
Corundum’s resistance to heat and corrosion makes it suitable for use in refractory linings for furnaces and kilns.
The gemstone corundum, known as a ‘fancy sapphire,’ exhibits a range of colors beyond blue, including yellow, green, orange, and purple.
Researchers are investigating the potential of synthetic corundum as a semiconducting material for optoelectronic devices.
In some cultures, corundum is believed to possess metaphysical properties and is used for spiritual protection and healing.