Hardness and toughness The Mohs scale is the most commonly used scale used to measure gem and mineral hardness. Corundum (ruby and sapphire) are relatively
Hardness and toughness The Mohs scale is the most commonly used scale used to measure gem and mineral hardness. Corundum (ruby and sapphire) are relatively
Hardness and toughness The Mohs scale is the most commonly used scale used to measure gem and mineral hardness. Corundum (ruby and sapphire) are relatively
A fact to be noted that one cause of the diamond formation process is its incredible durability. Durability is the jewel’s ability to withstand wear,
Hardness and toughness The Mohs scale is the most commonly used scale used to measure gem and mineral hardness. Corundum (ruby and sapphire) are relatively
Hardness and toughness The Mohs scale is the most commonly used scale used to measure gem and mineral hardness. Pearls are ranked 2.5 on the