David Sanchez

Are Diamonds Fragile? The Science of Their Durability

How Far Can You Stretch an Ounce of Gold?

What Are the Physical and Chemical Properties of Opal?

Do Lab Grown Diamonds Have Flaws?

Does Emerald Have Cleavage or Fracture?

Is Obsidian Harder Than Diamond?

Is Diorite Aphanitic or Phaneritic?

What Can Make a Diamond More Susceptible to Chipping?

Are Diamonds Rarer Than Gold? A Look at Supply and Rarity

How Is Zirconia Made? From Powder to Ceramic

What Other Metals Are in 10K Gold?

How to Tell If a Yellow Metal Is Real Gold

Are Emeralds Stronger Than Diamonds?

How Much Pressure Can a Diamond Withstand?

Are We Running Out of Gold?

Are Lab Grown Diamonds More Environmentally Friendly?

How to Make Amethyst More Purple

What Does Raw White Gold Look Like?

What Is Mixed With Gold to Make Jewellery?

What Makes Black Diamonds Black?